STYLETHREAD -- LET'S TALK SHOP!

I usually wear a six and a half because I like my shoes to be just a bit big - it keeps them nice longer and prevents blisters - but I have two size sixes from jcrew, and they're fine. I think they usually size just a bit big. So depending on the style, you should be fine with a seven, especially if you're getting a ballet slipper or something where extra room would ruin the fit. But if you're getting somethign with an open back, or straps, I would go bigger.