When I lived in Berlin, back in the early seventies, they turned the idea on its head. The city council would put up a notice on the lamp posts to say that a skip would shortly be arriving, and that anybody could put any (non-dustbin) item in it, and anybody who wanted any of it could help themselves. What wasn't taken would be removed the next day.
I furnished my crummy flat almost entirely with the fruits of my skip diving. And so did all the other students I knew. (The council would put up notices in the universities, advising of the dates and locations.) Some would even hire a taxi for the evening, it was so worthwhile. So the poor got their free furniture, and the not-so-poor could go out and buy a new three piece suite without having to worry about what they'd do with their old one. It all worked rather well.
Would it work here in Britain? Some jobsworth would probably grumble about the insurance risk when people clambered into the skips and cut themselves. But heck, Berliners had seen worse worries than that.
BJ