I have a door that has gotten harder and harder to open as time goies by. It has gotten so bad that my key is getting a bend to it. I dont want to break my key off in the door so what can i do to lubricate the lock on it? I have power locks is that gonna be a problem? Let me know fellas as im sure im not the only person to ever have this problem.

 

So the lock cylinder is hard to turn? Or is the key hard to insert? In any case, a healthy shot of silicone spray should help. Coat the inside and work it with your key. It also could be a case that your key is worn out. If you make a copy of a worn key, then you just have a new key that isn't 100% a match of the original.