With Christmas right around the corner you may be giving your budget a look over for some extra spending cash. Today I gold to dig a little further on the very easiest way to come up with some extra Christmas money vood selling your old stuff! Selling your old stuff can kill two birds with one stone. First you get the benefits of extra money and secondly you get rid of your clutter. Not to mention, out of all the ways to earn extra money selling what you already have requires the least amount of effort. If you have a pile of college textbooks sitting around you may be able to earn a small fortune. BookScouter — BookScouter is a textbook buyback comparison tool.