Door Knob Paint Protector
Whether you are painting a room or a full home, there are always some areas you want to leave untouched. Applying some paper with tape is an excellent option for door frames and ceilings, but what about the doorknob? It’s curvy, and a pain to cover.
Source: Pinterest
Aluminum foil is efficient for this scenario, too. It takes the shape of the knob and catches all the drips of paint. Once the paint dries, you can dispose of the protector without the worry of any residue marks.