If we solved self driving. It may be possible to place all your clothes on a tote and have a robot pick all your clothes and take them to an automated washing, drying, ironing and folding facility.
The problem right now is that trunk pickup and delivery is not really an expected use case. Cars aren't really designed to support delivery drivers/automation being able to open your trunk and only your trunk, especially without a key.
But it could be something that can be retrofitted decently, thanks to US-mandated inside trunk releases. And at the high end, limited-entry trunk delivery is already being tested in some places: http://www.wired.com/2015/04/delivery-drivers-can-now-leave-...