You see that sidewalk outside? Tell your kid to run on it. Or hit the campus gym for weight machines, indoor swimming pools and more cardio exercise equipment than she can shake a stick at. There simply isn't going to be space enough for anything larger than a yoga mat in a dorm room, so encourage your son or daughter to leave the dumbbells at home and use the resources provided by the school. Plus, intoxicated college kids are prone to dropping free weights on their feet. You don't want to open yourself up to a lawsuit from another kid's parents. We say "another" because your kid would never do something that stupid, right?