I started playing poker. I never knew how much it's similar to chess-- in a thinking way, from betting, bluffing, planning, and coming up with strategies. A friend of mine actually plays pool, and when I watch her play, I'm doing the thinking thing again.
I should get into more thinking games... pool, poker, golf...
And I won five bucks tonight. Small dough, but I daresay that's pretty good for my first time.