How come the belts on a car last so long and i can't keep a belt on my vacuum to save my life?

excellent question, I change the belts on mine almost as frequently as I change the bags~|||HAHAHAHA,,,, Good question. Maybe you need a new vacum????|||Because you have to take the belt off your sucker in order to get her pants off.|||good question|||my guess would be stop running over things that do not belong in a vacuum|||it must do some heavy duty sucking this vacuum of yours :)