On the Mrs' '96 B4:
Changed the lower radiator hose o-ring since it was leaking. The PM (Previous MORON) tried fixing it with stop-leak. While I was in there and noticed the floating metal particles, I flushed the system 4 times and refilled with the evil green (which is what he had in there). I need to drain again since the thermostat housing I had was bad, so I had to order another.
Installed another horn to try and get it to work right (two distinct and delayed tones), but think it may be in the steering wheel since that made no change. Only one horn button on the steering wheel works currently.
Replaced the glow plugs, but could not compression test since the new compression tester is angled at a 90° and would not fit properly. One of the glow plugs was slightly eroded at the end. Found 3 thermal breaks in the wiring harness shroud, so it'll get a new one of those as well and I'll just test it then. I RTV'd it in the meantime since she drives it often.
Lubed all the door hinges with soy based lube, which seems to combat door bonk up here.
Bled the clutch slave in an attempt to get it to engage at a different point. It looks like the clutch is worn, so I'll throw a new one in this summer. It's not slipping, but is at the top of the pedal.
Installed new mint shifter and emergency brake boots I just got out of the junkyard.
Actually used the new mig welder for something useful, had to weld on a muffler support bracket to the $20 cheap muffler. The PM put a 2.5" cat back on it and when the muffler fell off after the axle beam, I couldn't believe how loud it was. Mine was silent by comparison and I have no mufflers. It's the Mrs' car and completely stock, so it got a new muffler.
Tossed a new timing belt on it a short time ago since the PM had no clue they were even supposed to be changed. Motor is tight (oil stayed golden for a few hundred miles, vs like 10 for mine), just gutless by comparison. She may not notice some .205 injectors and a RC, but the clutch will. Oh well. She doesn't need any more power anyway.
Put a new driver's wiper arm on since the PM stripped the hell out of the other one.
Still need to do a diesel purge, tear apart the seat track so it'll move easier, install the underbelly pan, buy a new battery, change the front rotors, new thermostat, maybe some injectors if it keeps stumbling right after starting (mine doesn't do it at all with double the mileage), clean the intake, disable the 5th injector, install some cupholders, install the fog lights (already have the switch), hook up the rear fogs, and weld up a hole I found under the carpeting in the rear. I'm glad to have a heated garage in which I can work after hours, but I'll be glad for summer.