Ashley,
You need a template CAD file. Not only will it have your favorite materials, but it can store all your favorite fills, linetypes, regions, composites, layers, layer combinations, pens & colors, keyboard shortcuts, etc, etc. It will also remember your default tool settings and automatically load your favorites list.
Of course this is just the tip of the iceberg. Templates can save you huge amounts of time every single day. As you are experiencing, it will save you time recreating your cool material. On a grander scale, it will give you full access to all your commonly used tools and settings, contain existing drawing and even modeling information, and automate all forms of output nearly completely. For example, the templates I like to create have pre-linked views in PlotMaker, so that your all of your documentation effectively creates itself.
So I would recommend investing in the creation of a CAD Template. You can choose to copy this to a new job folder each time you start a new job, or give it a .tpl file extension and use it from the File>New... Use a Template command.
Cheers,
Link.