After one week of climbing a 20 ft. ladder, my living room a disaster, an aching back and sore muscles, my room is finally done! The edger didn't work, but thanks to a tip from a friend, I taped off where the 2 paint colors met and used modge podge to seal the edge of the tape; painted over my boo boos and waited until the paint was not wet, but not completely dry. Pulled up the tape, and wallah! clean edge! Now to tackle my loft, spare bedroom, and the master bedroom and bath. UGH!