Washed, rinsed, but not drying the car. Used Megs clay + QD package as they were on sale from a local place. Only clayed my car a few times or about twice a year max. No problem so far except dropping the clay once. However, for my use, I always use only half a bar at a time so that I almost always have a spare. Once you're happy with the panel you worked on, I find it easier to QD and wipe off the clay residue with a terry towel right away before anything dried up. (Hope the remaining half-piece I had hasn't dried up completely yet as it's about time for another clay and re-polish)