How Can I Get the Most of of My Method Book?

I like a method book that has several levels combined into a complete method.  This way you can go into greater depth on a given subject.
I strongly recommend making an index of the following:
Scale pages:
Rhythm pages:
Improvisation Pages:
Fingerstyle Pages:
Etc.

This way your and your students can follow a topic with greater ease and depth.
For a curriculum, I use my own.  Guitar Essentials & Ensembles.