What's missing from your gym bag?

What's in your gym bag? Me? I've got deodorant, my yoga mat, a towel, my running shoes, spare socks ... erm, well, you get the point. There's nothing particularly fancy about my gym bag -- I'm pretty low maintenance.

Glee Magazine has a few suggestions for people like me, who aren't prepared for anything but, well, working out. How about mini beauty and bath products for that quick, apres-sweat pampering? A multi-purpose bra, in case you have some place to be after the gym? An energy bar for a quick fix? A pair of sandals for the shower? A hat and sunscreen, in case you decide to workout outdoors?

A mini-spa that you tote to the gym sounds like a great idea, but is it practical? I'll probably stick to my bare-basics workout gear ...what about you?