You want to set up your home environment to afford exercise. You can keep free weights near tvs or computers, and use them while watching or reading things. You can put a pull up bar in a frequently passed doorway and do a pullup or two whenever you go through it. Similarly you can put weights on a table you walk by frequently. This is one of the ways I get myself to practice juggling: When I have clubs on the table on the way to the kitchen I often just pick them up and juggle a bit, but when I leave them in the car I never feel like going into the car to get them. You want to make it as effortless and fun to work exercise into your routine as possible.