Free: Contests & Raffles.
I use a gerber sliding saw for trimming branches and stuff when I climb, it does a pretty good job.http://www.gerbergear.com/Outdoor/Gear/Sliding-Saw_22-41773I also have a Wyoming saw for cutting bigger stuff, its a little bit heavier but works a lot better. It breaks down so it doesnt take up a lot of space.http://www.wyomingknife.com/saws.htm