When you have more then one fence/door.. it would be really handy to have a device to hold more then one key without wasteing too much inventory space.. even better if it was equipable in one of those currently unused slots. We'll throw this in the seed bag, tool belt, ect category.
Please.
Edit: Also, concider the ability to make multiple gates open to the same key.
I like both of those ideas. That'd be good for trading with a city with massive walls, because you'd only have to go to the closest side, and not walk all the way around to the side with the gate.
"When I grow up, I want to be just like Kaka" -James Floyd, on growing up.
I very much so agree. It'd be great to not have it take up inventory space. I think this, seed bags (take up inventory, hold X number of one type of seed, right click to remove a seed) and tool belt (holds axe and possibly other tools) should be high in priority, as they help so much.