Dear adventure game protagonists:
I understand that in the universes in which you reside, certain rules must be followed.
Each individual key opens the door with which it is labeled, and nothing else.
Save points often require a consumable item, or some other mechanism.
The acid you're carrying around can only be used to eat through the floor of the room you've been weaving around, and not thrown at the zombie that's been chasing you through the whole place.
You know, normal things. But please don't discard a perfectly good set of wire cutters just because you've cut through one set of wires. You can use that for so many other things!