I never seen an actual guide but just think about it. Tape off what can be stained, damaged, scuffed, or you just don't want to polish. Trim, hood scoops, sharp edges, lights, grills, ect.
Meguiars Last Touch Spray Detailer is the last step to making an excellent first impression! Wipe away dust and fingerprints with Meguiars Last Touch
I live on Last Touch.. I go through a gallons in a few months like it's water.