If you're tapering for a marathon or half, you might find yourself edgy, anxious and worried about losing fitness with the decreased endorphins and increased time on your hands. Resist the temptation to cram in one last speed session, or attack the garage in an organization frenzy. Though it may be difficult, conserve your energy.
Remember, nothing you do now will improve your race, but many things can sabotage it. Instead, use the extra time to assemble your gear for race day: clean all your outfit options (short sleeves, tank, tights, shorts), figure out what you'll wear to the start (do you have throwaway gear?) and buy whatever gels, sports drinks or bars you want to consume on the course.