Carpoolers Who Don’t Ever Give You a Ride

Me and three of my friends are in a carpool. I give one of my friends a ride to school every day and the other two get there by their own means. But when school’s over I have to give all three of my friends a ride home. Two of them don’t do anything for me. And on top of that one of them lives about an extra five minutes from my house. I know they’re my friends and all but they could pick up the slack and actually contribute.