Is there a way to save your materials so you can use them again on a different project?
In Links and Materials tab click the F on the Link to Object field to save it to a Fake user.
If you want to set up a Library of textures and/or Materials map the Material to a Sphere or somesuch, start a new .blend called Materials.blend and from there Append (File >> Append) the sphere from the original file. To reuse materials you’ll now have a centralized Library that you can append from instead of having to remember which file contains which F-Material. You just have to remember to append them to the Lib file in the first place.
%<
Nomini,
Search the python & plugins forum for Blender Library. There is an excellent script for managing all sorts of Blender objects. Basically it uses the append functionality.
Best of Luck!