Need to exercise? Get a dog and walk it. Once the dog becomes accustomed to a daily walk, he/she won't leave you alone until you've taken him/her for a walk. I speak from experience. I have two older rescue dogs, and they follow me around, looking at me expectantly until they get their walk. Frankly, they drive me nuts until I can't stand it anymore and finally get their leashes. They truly are people observers: if I put jeans on, they expect it's walk time. Chapstick is the final and most certain clue that it's time for a walk. I often don't want to walk them, preferring to be lazy or do other things, but I always feel better after our walk and I thank them for making me do it.