Does anyone know how to get free sawdust or manure delivered?
I have read that many gardeners use sawdust instead of mulch as a frugal way to mulch their flower beds.
I know there are many tree removal services who will deliver wood chips for free but those are really tough to decompose so I am looking for saw dust but not quite sure what kind of businesses might have it in bulk and would like to get rid of it for free.

I looked up a carpentry school in my area and called the instructor and explained that I was composting and wanted to try saw dust as a brown ingredient. I brought a construction bag over to the school, came back a couple days later and picked it up. I just have a little city lot, so I'm still on that one bag. I forgot to ask, but I doubt that a school that's teaching would be using expensive pressure treated wood. That's an option for you, although I doubt they'll deliver.