To paint a large section without leaving lap marks, roll the nearly dry roller in different directions along the dry edge, feathering out the paint as you go. After completing the entire length of the wall or ceiling, move to the next section and paint over the feathered edges. For the second coat, apply the paint in the opposite direction. This crisscrossing paint application sharply reduces (if not eliminates) lap marks.
PSA: Color psychology is a thing. The right soothing hue can work wonders for your mind and soul. You might think that only works for pale blues, but the contrast of a light and dark color — or, in this case, off-white walls with chocolate brown and deep blue accents — has a powerful effect. "The darker color grounds the room, and then the lighter runs right up to the ceiling and makes it feel higher. It creates this serene atmosphere," designer Laura Bohn told us.
Unless you like textured walls, don't paint over dust. Wash the walls with trisodium phosphate (TSP) or a mild cleaner, like Jasco's TSP No-Rinse Substitute. For smoke-stained walls, Toto uses a 50/50 solution of bleach and water. To clean a wall, use two buckets. Load up your rag or sponge from your cleaning-solution bucket, and scrub. Before redipping, rinse the sponge in a second bucket filled with clean water.