Right now, all of them. The truck is just a handy place to store stuff until I get an office in January.
But, once I get some vans and start running 2 man crews, I'm thinking I'll give each person 3 or 4 scrim pieces (half scrims) and like 5 hucks and 2 microfibers. I only use one scrim piece per day but we all have bad days and I think 1 scrim piece = like 50 hucks. So you'd have to have a seriously bad towel day to get 3 scrims wet enough where you can't use them.
The hucks are just for decals and the microfibers are for wiping sills.
I love the scrim pieces because if I manage to use one of them up, I hang it on something then break out the second piece. But that's on a very busy day. Otherwise, I'm good with one scrim piece per day.
I might be off my rocker, but I finally found the sweetness regarding towels and it is actually exciting: the fact that my laundry load on friday is only 2 scrim pieces, one huck, one microfiber, and two mops... That's seriously awesome. It takes me only 30 seconds to fold everything for monday.