Though I exercise regularly, it's hard to get motivated to leave the house when it's cold and snowy out there. The one fitness item that I can say I use regularly for at-home workouts is my stability ball, like this Yellow Studio Series Ball from BodySport:

When I work out with my own ball at home I like to follow this Stability Ball Workout from Fitness Magazine. There is an exercise for every part of your body here. I ripped this workout from their magazine years ago and still refer back to my crinkled and worn copy!
I would recommend doing this workout in front of the TV while watching whatever guilty pleasure reality show your family hates...like the Kardashians or The Real Housewives of Beverly Hills!
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