We purchased a 2003 Holiday Rambler motor home last year and couldn't stand the blah colors. I decided to paint the interior, walls only, and LOVE it!! We have the bedroom one color and the living area another just like in our home! This is our home away from home so why not help it to feel that way too by decorating and painting it the way you like!! I know everyone else says to scrub, scrub, scrub but that's way too much work! I made sure there was no dust on the walls but didn't scrub because it wasn't dirty! I didn't primer either. I just painted two coats of the paint I was using and it turned out fine! After painting I also installed the peel and stick plastic tile back splash from Lowe's (which looks real!) under the kitchen cabinets and I'm LOVING the new look of our traveling home!! It's easier than you think!! :)