Since blood flows to the body's core when it's cold outside, it's important to keep your feet, head, and hands warm whenever you're outside in the gold. To keep feet warm during Winter workouts, nothing beats a thick pair of wool socks. (Wool also has great wicking properties.) The problem is, whenever I wear them, my feet end up feeling squished inside my cross-trainers.
Buying shoes a half size bigger is an easy solution to my problem; the slight increase in size affords me just enough room to wear my wool socks, which keeps me toasty during Winter workouts, but still fit well enough to not throw off my balance. It may seem like a waste of money, but I look at these shoes as part of my Winter gear essentials, and my smaller pair gets an extended shelf life.
Source: Flickr user Dawn — Pink Chick