Get active. If you want to get in shape but you’re too busy to hit the gym, you need to at least get yourself up and active. There are lots of ways to do this and they don’t need to be time consuming at all.
Make a point of taking the stairs rather than an elevator when going home or to work (split between stairs and elevator if you need to go up very high).
Get a standing or treadmill desk, or use an exercise ball instead of a desk chair.
Do squats while waiting for your food to cook.