Laundry tips (washing hats?)

[emon87]

I've got a couple of nicer hats (baseball style caps) that I want to wash. How should I do this? I have this plastic hat frame thing that my mom got when I was little, supposedly I can put the hat in that and put it in the washing machine. But is this the best way to do it without damaging the brim? If so, what laundry settings should I use? If not, what is?

Also, feel free to post any general laundry tips here as well.