Summer Can Be Boring

Especially on days when it's too hot to venture long outside.

What do you do to beat the heat?

I do some reading, and lots of writing--at least this summer that's what I'm doing. I'm in the middle of Tim Cockey's mystery THE HEARSE YOU CAME IN ON, which is very funny and fast-moving; I'm also reading endless assignments for my rhetoric class.

Tell me your ideas for (preferably free) summer fun!