As flippant as that may sound that is where I am at. I don't have any "valuable" firearms but they are piling up. I also have found that if you buy a 24 gun safe that one half will be used for pistols, jewelry, important documents and other accessories, the other half will not hold 12 guns unless you perform Tetris moves every time you take one out or put one in. Realistically an X-number gun safe will hold 1/4 of the stated capacity of long guns comfortably.
I also need to find a reproductive inhibiting safe. It seems like every time I close the door they multiply.
Until then I try to put my least used long guns in the back and arrange the scoped/non-scoped long guns so they fit more comfortably. Regardless it gets tiring and bangs up the firearms more than necessary.