Keep your space clear with the help of a spirit trap. Use a black Sharpie to write out a spell or prayer of banishing in a spiral pattern around the inside of a plain bowl. As you write, speak your words out loud to give them extra power. Place this bowl in the area where you've noticed unwanted spiritual activity. Leave it overnight and as the sun rises the following morning, take the bowl outside to be cleansed by sunlight. Keep your bowl somewhere safe so that it can be used again when needed.