Getting ready to polish my car. I have never used a paint cleansing lotion because I thought that the polish would remove any old wax and contaminents. After reading other post about cleaning paint before polishing it does make sense to take that extra step. Can anyone recommend a good paint cleaner? Should I use it before and after polishing? Is there a pure paint cleaner that won't leave a sealant behind, like some AIO? I've alway's used an alcohol wipe down after polishing to get rid of any oils in the polish. Is this the best way before applying LSP? Sorry for all the questions, but polishing is a lot of work and I don't want to miss something that would give me a better end result. I'm using a PC and have all the pads. I'll be using mez 106 to polish.