I've recently started taking the Dale Carnegie Course. If you have not read "How to Win Friends and Influence People", basically the point of the course is to reiterate certain simple things you can do to make yourself more likable, confident, and persuasive. All of which are extremely important traits to have when running a business. I highly recommend it to anyone, at the very least you should read Carnegie's three books. I will try to make a post or two on the really important points.
Also, on the fitness end of things I've gotten myself signed up for an Adult soccer league. Scary, since I have not touched a ball since high school.