This book I got from Amazon called "The Popular Mechanics Complete Car Care Manual" says you can avoid scratches while detailing and cleaning by using a natural hair brush, instead of a brush with synthetic bristles. Where can I find a natural hair brush? The auto parts stores that I've checked only have synthetic bristle brushes. Should I try Macy's or Dillards? Yesterday, I wanted to use a brush to sweep the mini-shudders of my dashboard's A/C vents, but I didn't have a natural hair brush. Have you seen that $8 Black Magic cleaning/detailing brush kit at AutoZone? It has a specially designed A/C vent cleaner, a rubbery tipped detailing tool to remove excess wax from tight spots, and some brushes with synthetic bristles. Should I go ahead and get that? Is it any good? Or should I continue looking for a natural hair brush? Thanks.