Lots of good replies to this. I learned some new ideas from reading this post.
I guess the gist of it is, to mix it up a bit and keep life interesting.
Write some lyrics, sing, (even if you suck)
Have fun and pretend like it doesn't matter.
Smile while you play and pretend your as good as Eddie Van Halen.
I'm just jabbering, but I'm sure you get my meaning.