How do you store yours?

I store my lenses in an open bookshelf in my study, so plentyful air circulation. The one exception is a large Pentax 67 400mm ED IF which is stored in its original aluminum case filled with lots of packets of silica gel. The previous owner had stored the lens in this way for more than ten years, and the lens is in superb condition. Consequently I assume this is a safe way to store the 67 400mm.