I'm glad you brought up doors. This is one thing I'm terrible at. I redid all the old school knobs in my old house because the knobs were ugly brass, and I wanted some thing more plain and modern. Getting them to work just right took a lot of tuning. It's probably because no one showed me the process and I just figured it out as I went. I do know how to get a sticky knob working like butter, though. This house has the old style too, with glass knobs that I'm going to keep. A couple of the doors need adjustment. I'm hoping my FIL can help me with that. Four of the doors feature leaded stained glass, two of which are pocket doors that still work fine. I'd like to keep all of them, even the solid wood ones intact and working. There's even a swinging waiter door in the basement that house to the entry connecting the dining room to the kitchen that I'm going put back in when the baby is a little older.