right now i use meguires paint scratch remover, nufinish polish, and meguires wax, and the results are good, my friend and his dad are really into classic cars and have a few that are show cars (2 chevelles, a mustang, and gto), and they rave about Liquid Glass, since it makes the paint look deeper and does protect against small chips etc etc since it forms like a hard coat on the paint, and of course, the more coats you put on, the better it looks. so i'm asking if any of you have tried it, since i work all the time and i only have time maybe once a week to take car of my car, and dont wanna waste it using something that is a waste of my time.

so, has anyone used Liquid Glass, and if so how many coats did you use to make your car look extra sexy

I'm not familiar with liquid glass, but i can say that with out good paint prep any Acrilic detail/wax like sprays will likely leave you disheartened.

wash the car,
clay the car,
Prep the paint by removing swirls, Wolfgang makes great products for this.
do a final polish on the paint using only a polish with no fillers.
Seal the paint with a sealer, IE AIO,SG,Wolfgangs sealer.
THen top off weekly with a acrylic sealant spray, AJT, duragloss, ect.