I've been buying clothing from Amazon for quite a while. I haven't had to return anything though. Mind you I buy things like t-shirts, underwear, shoes, casual wear shirts, and pants. But I almost always buy brands I'm familiar with and know which sizes fit me. Basically I buy clothing like that available at Walmart, but it certainly beats having to browse in Walmart.

And I second the thought that living in Texas in summer is a lot like hell. Hot enough to fry eggs on the sidewalks. The middle of July through the middle of August is horrible. The rest of summer is slightly more tolerable.