Lots of uses for S&W, but my favorite is as a drying aid after a "tradtional" bucket wash.

On hot and sunny days, helps to easily remove those pesky water spots when the sun beats your towel to that panel.

And of course can make quick work of those little "bits" that didn't quite get whisked away by your sponge/mitt. In and around the doors and trunks where you don't want to splish and splash away with your hose. Clean up bird-n-bug residue between washes... Now that you have some you'll find plenty of uses yourself.