I have recently been trying to figure out an efficient way to store them out of their sheaths, but find it requires 30%-40% more physical space to do so. So, as of right now, they are stored in their sheaths (leather and nylon). Best thing I have done is to give all of them a light drying silicone oil treatment before putting them back into the sheaths for storage. I coat every bit of the MT inside and out with the oil(except for plastic parts on some MTs)and leave them out to dry. Before I put them back into storage, I make 100% sure there are no fingerprints on the tools, as the skin oil seems to be a major catalyst for rust spotting. It may seem like overkill, but not a single tool in my collection has rust. The only tool I have with major rust pitting is a JPST, but that one is a little sentimental, and it has been treated to prevent rust from starting back.Before putting your MTs back into storage; use a magnifying glass, loupe, or magnifying glasses to examine the entire tool (inside and out) for finger grease (fingerprints) or dirt. I use microfiber rags to wipe away the finger acid and dirt.Call me a nut, but it works.