The whole website is a one stop discussion about these products...It seems like you have done some research already..but here are some of my favorites that I must have.
Meguiars Foam Applicators for Zaino
-For paint: Zaino Z1,Z5,Z2
-Carwash:
Meguiars Gold Class
-Metal Polish: Mothers Metal Polish
-Interior: 303
-Tires: Anything that doesn't fling off and gives a high gloss shine.
-Glass: Windex in the aerosol spray, with newspaper.
-Drying:
Water blade, Charisma Select
-QD:
Final Inspection ( which I don't use anymore, but for birdbombs and claying its pretty good), but I really should get Z6.
-Wash Mitt: Viking Chenille
-Leather: 303
-Interior odors: Febreeze Long Lasting, to spray on carpetted areas.
-I also have about 80 Terry Cloth towels, 100% USA cotten for removing Zaino, and QDing.
-2 NicSand MF towels, I use to use on my paint, now will be used for door jambs, and other low priority areas.