I have had the best luck with Freecycle from areas more then 20 miles
outside of Boston. Trash day works sometimes. Somewhere on here there
is a picture of someone pickup up a whole yard full bikes on one day.
Moving day is this weekend in Boston, I wonder how many bikes will be out
on the curb. I am out of town so I won't know. (For those not from Boston,
about 80% of the leases renew on September 1st and Labor Day weekend
is the big move). Also charity type sales (churches, Mason's, etc) are a good bet,
but you need to be there at the opening.

Also CL listings of items not well described and not having a picture. A lot
of buyers insist on pictures so when there is none the response can be poor.