Your teen niece or nephew is spending way too much time in front of the TV, lately. Plus, they've taken to hitting the fast-food circuit with their babysitting money. The result? Well maybe they're getting a little out of shape.

Take your niece or nephew to the gym with you! Maybe it's a yoga class, or that spin class you've been excelling at lately, or even a swim at the indoor pool. Consider hiring a personal trainer for a session to help create a work out plan for them - and for yourself.

Gym memberships can get pricey, so see if you can get a discount on a second membership for your niece or nephew if they seem to catch the gym bug. Maybe having them join you at the gym is incentive enough to get you going too!