What are some good ways to advertise for free? (or at least dirt cheap)?

Hire an seo expert. It would also cost you less and at the same time,, will generate good traffic to the site and bring in targeted visitors for you. Business promotion for the sites of your kind need certain kind of seo like the classified ad posting, ppc ..... These are to be done an efficient seo expert . It will definitely help you bring in leads and profits in your business. http://nicheforseo.com/ For more information on seo, you can look into this site.

Step 1: Make sure you have plenty, high quality (means interesting for your visitors), unique (written yourself, not copied) content on your blog Step 2: Write a few articles about your interior design, and post them on article directories such as ezinearticles.com and such. This will create links towards your blog Step 3: Write articles that answer peoples questions about the topic here on answers. Then answer their questions here in answers. Step 4: Submit your website to directories such as dmoz.org and plenty of others Step 5: Find blogs about the same topic, and comment on their articles, make sure your comment adds something usefull, not just saying something like "great blog". Put a link to your blog/website in your comment. Step 6: submit your blog to sites like mybloglog.com and blogcatalog.com and get a good community of friends there. Step 7: Go to http://www.icantinternet.org and read all the articles there about SEO and such.

you could try money-mailer services. Making copies of flyers and handing them out. (if you know someone with a copy machine that would be perfect) Hit the colleges and ask to put up flyers. For something completely free, your going to have to go with hitting the streets and selling your behind off. Word of mouth. Direct Selling, Bothering people, whatever you want to call it. Be careful about soliciting people inside of stores, you don't want to get sued or anything

Create free profiles on Linked In, MySpace, and Facebook. Key the titles of your social profiles to your physical location. (If your business name is “We Fix It” make your profile Seattle’s We Fix It). Create business profiles on Yelp.com and CityScape.com (currently being revamped). Have friends and family members post comments on your services so that other customers, as you get them, will be encouraged to do the same. Join Twitter and Tweetdeck or other free Twitter application that lets you monitor real time conversations based on specific keywords. So if you are a programmer, you would want to follow conversations that contain the words “computer programmer.” That way you can interject yourself into the conversation. If, however, your business is computer repair, Twitter may not be much value to you.