Avoid Drips as You Paint
Masking tape does a good job of protecting woodwork—if it’s applied well.
Clean off all the dirt and grime along the edge of the trim with a damp rag. Hold the tape tight against the wall and roll it out so the tape covers the edge. Press the tape against the wood with a putty knife along the entire length. Use painter’s tape that’s at least twice as wide as the trim and leave it flared out to protect the face of the trim from drips. When you’re done, either remove the tape immediately while the paint is still wet or wait until the next day when it’s totally dry. If you pull it free when the paint is partially dry, you may peel off bits of fresh paint along with the tape.