I used to play pretty much just in C, Am, G, Em, D, and A. This was because the first things I learned were open position chords. Now, 5 years down the road, my most common keys are... A, C, D, E, F, G, Am, Bm, Cm, C#m, Dm, Em, Fm, F#m, Gm. I figure in a couple more years I'll play in all keys equally. Oh, and I do this all without a capo - bar chords, or figuring out ways to turn some chords into open chords (ex, C#m can be played as x, 4, 6, 6, 0, 0 for a nice C#m7 open voicing)
"You must stab him in the heart with the Bone Saber of Zumacalis... well, you could stab him in the head or the lungs, too... and the saber, it probably doesn't have to be bone, just anything sharp lying around the house... you could poke him with a pillow and kill him."
- Aqua Teen Hunger Force, The Universal Re-Monster
