I collect tree leaves in bins made out of welded wire fencing. The bins of leaves will just sit for a few years and break down over time into nice compost. When I need to mulch the vegetable beds, I get leaves from the bins and create several inches of covering over the soil of the vegetable beds to keep the moisture and heat regulated. Here is a picture of the bins storing leaves.
I advertise on local social media that I’ll pick up bagged leaves: http://gallistead.com/free-leaf-pick-up-service-in-princeton-texas/
This is a good recycle / reuse program, since my city doesn’t pickup leaves. Citizens have to resort to burning them, hauling them to the dump themselves, or wait for every-other-month bulk pickup service, which just takes them to the dump.