Well, I can report that freecycle worked for me. I got five or six offers and spent a nice hour or so this morning chatting to a lovely lady while we raked up and bagged enough leaves to fill the back of my car. She had broken her leg recently so was glad of the help, so we were both happy.
I think our council puts them straight in a trailer, so not much chance of any bags that way.
Slightly off thread, but how do you store your leaves? I know the two usual ways are either in black bags, or in a wire mesh container, but these two methods would seem to be completely different environments. What are the pros and cons of each?