Over the last few months, all North of the river :- A couple of new treated 4" square fence posts, one 7ft long, one slightly shorter. They were in with a load of old paving in a builders skip.
From a different skip, a couple of 6ft galvanised steel chains, the sort you would use with a padlock. Nice strong ones too.
I most recently acquired a Karcher pressure washer, spotted at a regular fly-tipping location. I don't know if it's any good or just scrap though as I haven't had a chance to try it out yet.
If it's good, I'll leave it at work because I've already got one at home. It wouldn't surprise me if it works, as I have found several quite expensive items over the years that were chucked out despite having nothing whatsoever wrong with them.