i dunno if its already been suggested, dont bother to read thru the forum.
i think it would be nice to have house doors with locks, so u can have some private space even among trusted ppl. maybe even locked chests.
eventually it will spawn too many keys to store in your inventory. which leads to another - the key ring. i dont see why u have to store keys in inventory, its relatively small after all. maybe we need some sort of container to hold those keys, and it should be equippable, like on waist instead of belt or something.
if its already in game then nevermind me noob. although i want a link then.