"I haven't a clue what OH did with the massive cart-horse saddle we had on the landing stair wall"
Have you looked at your bicycle recently...? Better still, have you actually found your bike yet?
It sure must be fun finding/losing all this stuff, and realising how much you won't miss some of it, because of pastures new.
I had a clear out a load of old PC cables, phones, cables etc, and finished up with two enormous boxes of this sort of junk from the roof. Every time we'd bought a new bit of kit, I'd just chuck the bits up there and forget about them! I couldn't even lift one box, and had to get the bloke in the recycling yard near Battle to carry it in for me!
Well done you for getting stuck in!
(Let us know when you find the saddle, there's a story there methinks...;0)