Cardboard Spray Booth
The plastic-wrapped case that holds 24 bottles of water is a perfectly sealed tray for your paint cans, brushes and trays. Sloshed or dripped paint won’t spill onto a drop cloth and be tracked all over the house. When you’re opening the water bottle package, cut the plastic about 5 in. higher than the top of the box and then fold it in.
Feather Out the Paint Where You Can’t Keep a Wet Edge
You can’t cover large areas like ceilings, extra-tall walls or stairwells in single, continuous strokes, so the best way to minimize lap marks on these areas is to feather out the paint along the edges that you can’t keep wet. The thinner, feathered coat of paint will avoid the buildup that causes the lap mark.
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.