Outside of setting the self timer or trying to do the cliche myspace-point-the-camera-in-the-mirror pose, your not going to be able to take many pictures of yourself. Sure other people can take pictures of you, but they never get the lighting right, they typically have a high powered wash-you-out flash, and catch you with your eyes closed. I can hand them my camera, but they have no clue what an aperture or a ISO is! Maybe its just because I'm a photographer, but I find that its very difficult to like a picture that someone else takes of me. I've noticed that some other photographers have had the same problem! Some of them remedy this by doing the "I'll shoot you, if you shoot me" thing. Maybe I should do that.
I just wish I was friends with a troop of skilled photographers that didn't mind bringing their cameras when I'm skiing down a hill at 40mph.