Is staying in shape always something that gets bumped to the bottom of your list? I know many people that complain about not having enough time to exercise. I think they are lying to themselves. The real problem is that they hate exercising, so it will never be a priority.
I used to hate exercising too. Going to the gym, running and most forms of physical activity seemed dull and painful compared to most other ways I could spend my time. But by not giving up and looking for a way I could enjoy working out, I reversed this pattern. Now I exercise 5-6 times per week and I hate not being able to go.