I wore an 11 for as long as I can remember, but for some reason 11s aren't fitting me correctly anymore (or they're just crazy uncomfortable standing in all day while I'm working)...so now I'm a size 12 for the most part.
It's totally impossible to find shoes without them costing a million dollars. For those of you fellow big-footers, check out Torrid.com. It's a plus sized clothing store, but their shoes go up to a 12 & they seem to be pretty good on the width too (I actually wear an 11 in most of their shoes)...I have had width problems with Nine West's 12s.