> This change was accompanied by a switch to single-stream recycling - that is, all recyclable materials can be deposited in one bin and sorted later. From what I've seen, this change has significantly increased recycling.

If the two changes (signage and single bin) happened at the same time, why the claim that signage was significant (and the omission of the single bin omission)?

> Could you give some examples of goods that don't make sense to recycle currently?

Sorry - I stopped tracking these things when I figured out that folks didn't care about the economics. I'm reasonably sure that they still exist because people are still people.