Wow, I gues I use less than the rest
Drying: 2, no matter if the car is soaking wet or if it is 85% dry after slow rinse or water blade
Polish: 4 - 6, depending on product and car
Wax: 2 only
Door jambs: 2 or 3
Wheels: 1 or 2
Spray wax: 2
Quick detailing: 2
Engine: 2 only to clean, 1 to dress (I take out the nastiest stuff first with those paper "shop towels")
Waterless wash: 2 or 3
Interior: 2 to clean, 2 to dress.
Glass: 2
My average session is only 6 towels: 2 to dry, 2 for the spray wax or quick detailer, and 2 for glass. Interior is done every 2 weeks. If in a hurry, just dry the car.