I sat down to practice guitar. I broke out my Telecaster, plugged it into my Traynor, and started warming up. The first thing I noticed is it had been so long since I played that electric, I had forgotten how damn good it sounded. Then, after a scale or two, I started to see how many songs from my old bands I still remembered. Then I started to see how many old heavy metal songs I could sing and play. Then I looked at the clock, and two hours had passed.
Practice is good...but I forgot how fun it was to just say "the hell with it" and simply play.