If there is any planing mills around you, it's a great source of kindling. I saw on our local planing mills reader sign mentioning firewood so I stopped in. I left with a truck bed full of scrap base boards and crown moldings. All oak, maple, hickory and birch. (Unstained of course) They were all cut to around 16 to 18 inches long. They asked for a small donation, which they said 2 to 3 dollars was pretty normal. Pretty cool I thought!