Saturate the sponge with water, and squeeze out the excess moisture. Squirt 2 drops of dishwashing detergent onto the sponge, and squeeze the sponge gently to activate the bubbles.
Place the prepared sponge and the dry cloth near you as you apply the paint to the wall. Watch your painting progress as you brush or roll paint onto the wall, especially in areas where you can inadvertently splatter or spread paint onto adjacent surfaces, such as the ceiling or other walls.
Wipe off wet paint from the ceiling with the sponge as quickly as possible when you notice messes. Rub the sponge lightly over the ceiling to wipe away the wet paint, continuing to rub until you remove it entirely.
Wipe the wet area with the dry cloth to finish removing the paint.