I have a "smoked" rack that holds 14 pipes. I'll smoke a few different pipes every day, and the next day they go into the smoked rack. Anything in that rack sits at least a few days before it gets smoked again. The rack fills up after a week or so and then I'll smoke from that group until they need to be cleaned, then the smoke rack becomes the "time to clean" rack. I'll usually go for a different group of pipes the next time through the process. That said, there are a few crown jewels that I only smoke occasionally which I clean and return to the vault the next day.