This is a really simple protection spell to defend a room or a space against bad energy!
All you need are some pennies, a bowl of water, salt, a feather or some incense, and a candle to represent fire.
Using all the representations of the elements, bless and purify each of the pennies, visualizing an unbreakable barrier of good luck and protection. When you’re finished, place a penny, heads-up, in each of the corners of the room or at the barriers of the space you want to protect.
Voila! Simple and protective.