Uber, the ride-share private car company, is known for occasionally using its fleet of cars and drivers to make unusual deliveries: puppies, kittens, ice cream and roses, to name a few. 

This Saturday it will roll out its “spring cleaning” service again. The service connects users with a driver who will whisk bags of clothing to a Goodwill donation center for free. 

Zuhairah Washington, general manager of Uber D.C., says “surprise and delight campaigns” like these allow “people to experience Uber in a different way.”

Users who want to clean out their closets need only pack their clothing into bags, fire up Uber, select the “give” option, and then … wait.

Whitney Johnson, an actor in New York, is a regular Uber user. But when she tried to use the spring cleaning service last year, she waited for four hours. Her advice? “Start early, keep trying, don’t give up.”