Haven't changed my sig for ages. It is ok for the time being. I do change my avatar whenever I get bored with it and feel like a change. I've stuck with this one for a while now and may change it soon.
lol, I'll change my avatar every few weeks. Change my signature once I make one that's presentable. Or a SOTW(Sig of the week) entry on another forum, I'll use it too. Meh. Foamy rules. o.o