Fortunately, there's something vaguely resembling a pull-up bar outside my house. (Actually, it's a piece of pipe that runs between two trees.) So I can do pull-ups and chin-ups. Push-ups are always good, too. I'm also thinking about doing handstands against a wall. All I need now is to find heavy things to lift frequently around the house.
Any advice on strength training exercises or how to maintain a weightlifting program?