Lots of good ways listed here to clear your deck of energy. The moon or sun is a good way to charge your deck after clearing it. Giving it to the earth in a mason jar or burying it in salt is another way. My go to is smoke cleansing, crystals, and knocking. I do occasionally put them out to charge under the moonlight in the windowsill. You know your deck is off when every reading doesnโt make sense anymore. Time to cleanse and charge.