Art Maintenance

Today was suppose to be a sketching/drawing day, but it turned into art maintenance/organization day. I have so many sketchbooks and art references that I'm just not sure how I want to organize my stuff. Basically I'm figuring out what sketchbooks will be used for my various art and design goals.

As of right now I want a sketchbook for each of the following: patterns and textures, fashion and accessories, buildings, objects and misc observational, and full color renders. It's looking like I'll be using the big black sketchbook for texture and pattern and the smaller ones for observational/buildings.