this with disposable gloves (you'll want to use it). unlike the soft blue from meguair's this yellow clay is even softer (SUPER soft) so even on your black it shouldn't damage the finish. i use it all the time on my hobby cars.
Paint Cleaning Clay - Griot's Garage
with any off-the-shelf quick detailer spray or soapy water, or Griot's SpeedShine if you want.