I have a Ryko Softgloss. My top wash is $7 and includes trifoam, wheel scrub, and dry. I am adding, as soon as I get a rainy day, a bug spray and a "rainx" type product. I have a $5 and a $6 wash also. How much would you bump it to add the 2 new products? I think I'm going to keep the 3 that I...