I picked up a truckload of free kindling yesterday. My kids and I split up two large totes and a trash barrel full. We got this from a company that has it available 7 days a week.
Love that kind of stuff, so easy to split that stuff being mostly pine or the like. Often it looks like fence board material at 8-12 inches or so and it pops off so easily, you could do it with a broad knife.