Separate your wall colors. This is SUCH a good idea!! I dont like two colors coming together on a corner and this is the fix for that! This would also be a great fix for the beat-up corners in the house.
Why didn't I think of that?!?! Easy wainscotting idea: buy frames from Michael's, glue to wall and paint over entire lower half. Got this tip from a savvy home improvement person. Ha! That's stupid easy.