I've filled my cabinets but can't stop buying, so now I balance them into stacks on the floor..
It's not pretty and I really need to do something, but digital storage would demand a heck of a lot of TBs and I don't want to seperate case and disc just yet..
Anyways the stacking system works okay, it's easy to get an overview and recently seen end up on top of the stacks and unseen remain in plastic so easy to spot...
But messuring your films in meters rather than numbers aren't exactly a perfect system...
Back before my cabinets overflowed I usually kept them organized in genre - these days the only organized one that remains in the Zombie one :)