I have cleansed my cards with incense/sage smoke a few times, I have so many decks of Tarot/Oracle that to cleanse them all would be a major chore! lol I keep them in my bedroom on my dresser when not in use, I do carry a deck with me at all times in my purse along with a few stones (ie: quartz, apache tear, amethyst ect...) the feeling I get from my cards (generally all of them) is that they like to travel and go where I go, if that's to my locker at work or sitting in my car they really don't mind. I allow others to touch my cards and love to read for new people, it seems they love information from all and center with my energy at the core. I have let close friends use my cards to read for me as well, which hasn't seemed to bother them at all.