Thrifty Strategy: Buying kid-sized clothes for adults

Right before a recent vacation, I realized I might need "water shoes," those flexible shoes that you can wear on the beach or in the water when there are a lot of rocks. I headed to Target to see what I could find. It turned out that the boys size XL shoes fit me better than the women's size 7, and were about $4 cheaper. Can you guess which one I picked?

I've used the same thrifty strategy when buying souvenir t-shirts, often the kids size large or extra large is the same size as an adult small, but costs less and sometimes has cuter design choices.

Have you found any similar deals?