How do I print photos wirelessly?

How do we set our photos on Lightroom 3 or 4 so that we can print them at a store.?

• HI I have edited my photos using lightroom 3 and now I wish to print my photos. When I say print, I do not mean print from the computer to a printer, but I want to send my pictures to a store (like costco) and have them print it. I have tried before, but it happens numerous of times that they say my picture is too big. How do I organize my pictures so that they will not surpass the maximum size?

• Answer:

  Make a *copy* of the image (so you leave the original alone), and crop/size it to the size of print you're going to make (say 5x7 inches @ 300 DPI), then save that as a JPG file. Send *that* one to the lab. Peace.