I need to cut a bunch of limbs and a bit of trunk that I recently scrounged. Due to budgetary issues, I'm thinking about using a hand saw to do the job. The thickest pieces I have are 24" so I would probably need something fairly big to get it done. I'm a noob, never worked with a saw other than to make a pinewood derby car (2nd place). I don't pretend to know anything. What should I look for? Is this a dumb idea? Part of the reason I got into scrounging was for the exercise, so it doesn't matter much to me if this is going to take a lot of hours to do the work. I just wonder if I'm going to dull a saw blade in a few hours and then have to sharpen for an hour before I can get back to cutting. Thank you for any ideas.