Need some travel accessory recommendations...

I likehttp://www.eaglecreek.com/packing_solutions/packing_cubes/ for trips of more than 2-3 days. I was skeptical at first, but they make it much easier to rummage through your luggage while keeping your clothes neatly rolled/folded and organized.

I'm a recent convert to http://www.cocooninnovations.com/grid.php. They're a backerboard covered with elastic straps. They go for $15-20 most places. These things have really made managing the cords, adapters, mice, usb sticks, etc... so much easier. Everything straps in one place and it's thin enough to slip into a bag easily. I used to use a mesh bag which was, first, hard to store in my bag becasue it became a ball, and secondly hard to find things in. The Grid-it solves both problems, and is pretty cheap. Really like mine.

Second the recommendation to have a second set of toiletries ready and waiting at all times; I throw in a Tide to Go pen and a tiny thing of laundry detergent as well. Minimus.bz is great for small sizes of spices and toiletries and virtually everything else you could want. I always pack an extra small tote bag and a couple of plastic bags, along with extra ziplocs (and also duct tape re-rolled around a ballpoint pen, but I realize most people probably don't need duct tape!) I have a bag that pretty much just holds important travel things like my passport, different bags with different currencies and my foreign bank information, travel toiletries, old iPod/charger, my camera when it's not in use...pretty much everything I've found useful, so when I do travel, I can just go through it and grab the pertinent stuff. If you are mainly traveling in the United States and can afford it I would keep a set of duplicate chargers for your phone, laptop, and any other essential gadgets there as well. There is nothing worse than realizing you've left your only power cord on the plane or at home and trying to scramble for a suitable iReplacement. I have a passport cover as it was a donation gift from my old school; it is actually kind of a pain when going through security BUT it really helps me be able to find my passport at all other times. Also, my current passport is kind of a wreck, so it helps hold it together. If you have printed hotel reservations or boarding passes, I like bags that have slim external pockets where I can always put that kind of paperwork, so that regardless of how tired I am I can just reach to the side and pull it out. There are leather envelopes that serve a similar purpose. A travel umbrella that lives in your carryon may also be a wise investment. If you're in Canada in French-speaking areas and if you need it, a travel phrasebook or small dictionary. Multipurpose base layers in black and white, along with extra socks of different strengths, if you're travelling between climate zones. (Not totally clear from your posting history/it's the morning and I can't read whether you're a guy or a lady, but if you do get cold on planes I pack a giant pashmina as emergency wrap/rain cover/cold plane/pillow.) Honestly, the neck pillow and other items are just going to be really personal choices. If you can sleep on planes, great; if you never need to sleep on planes, don't bother.

Load up your toiletries in the appropriate-sized bag, including toothbrush, a hairbrush (if you use one), etc., and don't take them out between trips. Also, I find it helps to have belts and shoes that are just for travel, so I'm not trying to remember the matching pieces to suits I have.

I bought a http://www.muji.eu/pages/online.asp?V=1&Sec=18&Sub=79&PID=3402 from Muji for airport security. It seems more sturdy than a plastic one. I also save those sachets from magazines/free samples (eg. the toothpaste tubes your dentist might give you) and take these along rather than buying expensive miniature toiletries. It might be obvious, but a Kindle. I read three books a week if I don't have a lot to do, and you have no idea how much easier going on a long trip is going to be now. Also, if you wear make-up, I can't recommend http://ianabantug.wordpress.com/2011/12/20/my-unii-palette/ highly enough. I am away from home every other weekend as my SO lives in a different town, and it is SO much easier to take one palette with eyeshadow/concealer/blusher/eyebrow stuff in it than several small plastic boxes. Depotting things can be daunting and messy but it's so worth it (especially as I love NARS shadows but hate the rubbery little cases). I have an Eastpak shoulder bag which I use as my day bag when I'm away - it weighs nothing, rolls up and fits in my carry-on backpack, and has a zip which expands it. It's big enough to carry my camera, a water bottle, and any other stuff I need with me during the day. This is more of a holiday than a business trip thing, though, maybe.

Only using a carry on size bag will let you get out of airports a lot quicker.

Never run out of power. Unfortunately, that Belkin one doesn't have the power to charge an iPad. You want http://www.amazon.com/exec/obidos/ASIN/B003VTXY8M/metafilter-20/ref=nosim/ one instead. Also, have a car charger that you leave in your travel bag, only for your rental-car use. https://www.nytimes.com/slideshow/2010/05/06/business/businessspecial/20100506-pack-ss.html Have some way to remind yourself to check for all the things you've taken out of the bag and spread around the hotel room. I can't tell you how many times I left my travel router in my hotel until I started doing this. Luckily I tend to go back to the same hotels on rotation so I've been able to pick it up next time, but it's still a pain. Or on preview, what Theora55 said. Which reminds me, get a dedicated travel router. Most hotel's either make you pay per device or have open WiFi, which is a bad idea. Also consider a VPN service for when you're forced to use open WiFi. Apple Airport Express is one possible router. If you're entering/leaving the country, sign up for http://www.globalentry.gov/. Takes about an hour to fill out the form, and half an hour for the interview, and then you can speed through the customs lane. Also going to be used for Pre-Check, so might help out even for domestic travel.

Compressible foam earplugs or good headphones. A bandanna - some planes have a monitor on the seatback that plays ads or a movie instead of staying dark. It's very distracting, and being able to cover it helps me read or sleep. A couple of plastic bags for dirty shoes or laundry. Lots of ziplock bags; I pack underwear in 1, socks in another, etc. They act a bit like the cube system, allowing me to quickly look through my bag for whatever I need. They compress pretty well. Look at your electronics, and try to reduce chargers. My phone and tablet can both charge from a usb adapter like that Belkin one. I keep a set of toiletries ready to travel, and I keep a toothbrush, travel size deodorant, minimal makeup, and underwear in my handbag(backpack for you) in case I get stuck in an airport; bandanna can be a washcloth/hand towel. I can face most things in life if I have a chance to clean up a bit. I like my LLBean rolling duffle; it fits in the overhead nicely. I use bright orange label tape on all charger components; when I check out, a quick scan spots anything left behind. Label your phone, iPad, etc. Most people will just keep a found iPad, but you might get lucky. You can also create screen/wallpaper with if found, please return to: information. Amazing how many things can't be returned because the owner is hard to find. You may want to use office info so an evil person in line behind you doesn't rob your house. Keep a copy of passport, credit cards, etc., in the office or online, in case of theft or loss you'll want those numbers. Develop a rigid sense of organization. Receipts always go in 1 place, the book and glasses always go on the nightstand, the credit card always goes back in the wallet, etc. And bring a sense of curiosity; if you like books, try to visit the best bookstore in owns you visit, or go to the science museum, etc.

If you are a business traveller then you probably spend a lot of time fussing with the collection and processing of receipts. Specifically you probably have to fill expense forms and include evidence of your spending. After you have sent off the form you should retain copies of the receipts so that you can resolve disputes/pacify your accountant/ etc. In any case you can use your iphone to take pictures of them - and then save to the cloud so you have a permanent record - the image is pretty much the same as you would get with a scanner and much quicker to make. See also these https://www.google.fr/search?q=uses+of+an+iphone+as+a+travel+accessory&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-GB:official&client=firefox-a which will not add to your luggage load. You should also be able to photograph train timetables, shop opening hours, local maps and other stuff you might want to refer to later.