You do that too! I keep a tibetain quartz with mine, and cleanse them with smoke after reading anyone.
My first were my mothers, passed down. But I disliked the Waite deck and instead chose the Artist's Inner Vision Tarot. I picked them but they were ordered and paid for by a friend who told me to pick a birthday present. I was 14 then and almost 12 years later I still have the book and complete tarot deck. =) I was the first to touch them but I didn't buy them. I like upholding such "rules" for the sake of tradition.