Measure twice, cut once when drilling a giant hole in your door This is what happens when a handyman eyeballs it before drilling a hole in the door for a deadbolt.
Is there enough graphite in your locks? Some people keep squirting graphite into their lock over the years and then when you take the lock out a bunch of graphite falls on their carpet. Also graphite doesn’t perform well in humid climates.
A DIY fail I got a call for a sagging lever handle on a commercial door.I I showed up and found this: DIY fail fixing a commercial lever with broken return spring