Contributors of above posts have some really nice facilities and wonderful collections. In my younger days, I was in the Cdn Army and moved about quite a bit, often living on-base. I was then faced with the decision of reporting every firearm, make, model, serial and the rest to the MPs or taking a more clandestine approach. This was before the long gun registration. Having some youthful misunderstandings with MPs, I decided early on not bother them with extra tasks. I have built false walls between basement pillars and racked rifles horizontally between floor joists. concealed by suspended ceiling tiles. Both methods can be quite inexpensive and effective for concealment, but with access complications. Especially in basements, gear should be stored well off the floor in case of floods, sewage backups and the like. I also run a basement dehumidifier during summer months. Though ignored for periods of time, my rifles collected dust, but not rust. One exception was a Remington Model 8 stored in the basement joists under a plant that my wife overwatered. on a daily basis. Anything of value sitting on a basement floor should be in a plastic bin, not a cardboard box. Concealment is worth consideration.