1. Those really satisfying shots at pool -- the one where you hit the white most carefully and it just tucks your ball into the pocket; or the one where you give it a good wallop and it smacks the ball you were aiming for right where you wanted it; or best of all, the one that you don't expect to do anything, but then, just as your oponent is about to take his turn, a ball hit on the rebound falls into a pocket.
2. Coming out of work and discovering that it's still -- only just -- light.
3. When the sunset is pink and the clouds are dark and raggy.
