In the commonwealth there are plenty of doors and containers that you simply cannot open unless you know how to pick a lock.
I have never in my life seen a lock without a key, and while yes this is a wasteland and keys get lost I feel that it forces you to take lock picking no matter what character you wish to play.

This mod adds keys for almost every door in the commonwealth and re-purposes keys that are already in game.
Never again do you have to worry about not being able to go somewhere just because you aren't a master of lockpicking, take a look around for a key.
I have tried to place keys in places that you don't have to pick your way to and that should present some challenge.

This mod should be compatible with almost any mod due to it making very few edits.