Are you planning a trip abroad and need to brush up on your French? Why not use time spent working out to learn a language instead of watching reruns on TV or listening to the same old songs?
There are tons of books and CDs out there, but I found that the iSpeak programs work really well. Not only are they fairly inexpensive (around $13), but you can download the lessons to your iPod or MP3 player and listen while out for a walk or on a cardio machine (or a drive for that matter, but let's stick to fitness). They offer programs to help you learn French, Italian, Spanish, German, and many other languages. You'll feel so productive, working both your body and your mind. Bueno!