once u have leather working some of the "recipes" u will be able to make is to combine lesser leather patches to more sturdier ones. The progression is as follows and will be available to you as u lvl ur profession skill:
leather scraps to light leather light leather to medium leather medium leather to heavy leather heavy leather to thick leather and eventually thick leather to rugged leather
I just for fun figured out some time ago that u will need about 2000+ leather scraps to create on erugged lol!
and in case u dont know the trainers to get the "recipes" from are located around the world and there are several threads out there that specify the exact locations:-)