This is what I do for a living so I can tell you what makes life easier for me and cheaper for the customer. Not having to remove any body trim, antenna's, door handles, lock cylinders, window trim, the grille, lights, etc.Originally Posted by ///Sniper535
Also, if you're painting the car the same color it already was, it makes life alot easier if you can live with not repainting the door/hood/trunk jambs.
The closer you can get the car to being able to just bring it by and mask off the windows, behind-the-grille stuff, taillight holes and throw wheel covers on it, the better.
Personally, I don't care what the customer did. If I'm going to be applying any sort of guarantee to the work, I'll have to clean the surface with my own cleaners and make sure the entire surface is sanded with an acceptable grit, especially since with the exception of red, black and white our cars all seem to have metallic paint which makes the prep work more important.