Our local SB has the gardeners program in place - just drive around the back of the store, root through their organics bin, and help yourself. What is not collected by us is collected by the city. There are bags in there that can weigh between 5 and 40 pounds. I take the smaller ones.
However, when adding the grounds to my compost bin, I'm noticing that there are other things that must be sifted out and put into the regular trash. I'm finding empty plastic milk bags, tinfoil coffee bags, plastic lids, etc. that can't be composted.