They, after all, have managed to live away from you for an entire school year. You could spend the summer grinding your teeth to nubs, but I have a few other suggestions. This concept enables parents to disengage from their children in a constructive, meaningful way. It acknowledges that they are adults and that along with privileges come obligations. It encourages new adults to make decisions on their own, and it frees you from unnecessary worry.
Parents often fail to see the ways their children have grown.
Returning college students, even if their grades don't reflect it, have managed to live without you on a daily basis. Parents should honor that. That's where constructive disengagement comes in. Clean clothes are his or her responsibility. They may use your car if if doesn't interfere with your schedule.