1. I'm too busy.
This is by far the most common excuse. Yes, schedules are busy...but if something is a priority (the finale of American Idol, for example), you will make time for it. So make time for exercise. Try scheduling it into your PDA or datebook the same way you plan meetings or other commitments. For time-saving strategies, including interval training and gym shortcuts, check out this guide to making your workout quick and sweaty.