Funny story, but my family owns a mountain cabin. The lock on the front door is 100% no operable because of the elements and lack of lubrication. To make matter

Funny story, but my family owns a mountain cabin. The lock on the front door is 100% no operable because of the elements and lack of lubrication. To make matters worse the screws that hold the doorknob on are also fully seized meaning that it's going to take heroic measures to actually fix. You can open the door from the inside just not using the key. So we've resorted for the last couple of years to just using the back door. I'm not sure lubricating the keyway is my actual problem, I think the the plug itself is bound but yaknow.. maintence is important. Lube your machines.