I'm curious about this. How many of you do things like repacking headset/bottom bracket/wheel hubs, cables/housings, etc. on a regular schedule? I ask because I was going to install my first headset on my 1985 Sekai Bigfoot (had a modern 1" threaded on hand), took it apart and measured and sure enough it was JIS. No biggie. The original races were pristine and I had put new grease & ball bearings in there when I first bought it last October. Since I had it apart though I figured I might as well go ahead and clean it all (ultrasonic - my favorite helper) and new grease, adjust, etc. Then I cleaned the chain, removed the crank and put it into the ultrasonic cleaner (had to rotate several times), checked the bb, etc. So I thought, "OK, this is like "winterizing" the bike" - getting all the important things ready to go. I also shortened the shifter cables/housings because I lowered the quill stem quite a bit. Now, other than winter fenders, I'm set.
So? Regularly or as needed?