My feet have grown by a half-size in the past 10 years, all due to gaining about 60 pounds or so. If recommend looking into a half-size larger for any style shoe. And I'll agree going barefoot whenever possible is even better!
Zappos.com can probably help you out; I like some of the shoes that they have. I'd try shoes in a shoe store first, but looking for comfortable shoes are always the way to go.
