Choose the area you want to paint and decide on a design.
Mark your border, if you wish. Mark the desired height, then use a yardstick and chalk to join the marks so you end up with a faint, easily removable line that runs all the way across the wall or around the room.
Rinse a fresh sponge, then wring it out and squeeze it in a towel to dry.
Use a felt-tip pen to sketch a design on the sponge.
Cut out the design with sharp scissors or shears.
Pour a small amount of paint onto a smooth, flat surface such as a glass pie plate.
Flatten the sponge gently onto the paint and pat it around so coverage is even, then pat it onto the wall.
Use a ruler - hold it above or below so you don't smear the paint - to find your next target, then repeat the process.