I have thought about this before, too.

I can't stand using two spaces. In school they say that you have to use to spaces, but I never do. (whoops!)

IMO, I think that one space looks neater. Maybe this is just me? Usually on Pet Talk, I don't really notice when people use two spaces though.

Maybe someday I'll learn to use two spaces (if I am supposed to) but right now I will stick with using one space!