So I went through both of my entry doors this fall, improving their functionality. Both doors got weatherized properly, the back door was improved by tightening the hinge screws (boy did that make a big difference!), and the front door got a pretty big overhaul (door removed and jamb re-aligned.
After that work, I enjoyed the last couple of months with easy working doors.
Unfortunately, a little over a week ago, the back door all of a sudden started acting up, rubbing on the handle side of the jamb. This was just after a five day bout with unseasonably cold weather, and I thought that might be the cause.
This was obviously very disheartening, having spent the better part of a couple of weeks working on my doors.
Of course, prudence being the better part of valor, I didn't do anything about the door right away, as I needed some time to properly appreciate the situation (read: wasn't pissed off enough yet).
Finally, the solution became apparent to me this evening. As I was closing the door, I noticed a length of #8 THHN had found its way between the door and the jamb, at the hinge side.
Repair was carried out immediately, with results as expected.
If it had been a snake, it would have bitten me.
Jon