I hang a dart board about 20 feet away from my computer with some sticky notes. Includes stuff like attack / trade bishops / unsound sacrifice / make a waiting move / hope my opponent blunders / etc.
Sometimes though I throw a few darts and then flip a coin for the final decision.
It's improved my chess some, but I'm pretty damn good at darts now too.
Not recommended for real life tournament play.
I keep seeing beginners being advised to develop a plan, as if that were self-explanatory, but I don't have a clue how to develop a plan. I'm not really all that sure what a plan is. I could really use some good advice on this point.