First, I spent over 20 years teaching Gospel Doctrine weekly.  To prepare for a class I would read the assigned scriptures on Sunday evening.  Beginning Monday I would research in commentaries what others had said about the passages in the assigned lesson.  Then before going to bed I would re-read the scriptures for the next lesson.

I would continue this process daily until Thursday.  Beginning Thursday I would start to outline what I intended to cover in the lesson on Sunday.

Throughout the week I would listen to the relevant scriptures for the next lesson on tape/CD whenever I was in my car.  So on the way to and from work I would listen and re-listen to the scriptures.

In all the time I taught I never repeated a lesson.  I tried to go deeper and deeper into the meaning of the material every time I taught it.

Today with that background I read books and scriptures daily.  However, I take what I learn back into my scriptures and add cross-references or margin notes to make scriptural passages more meaningful for me.  My scriptures have very little underlining and no coloring, but there are many notes and cross-references in them.

I try to tie any new concept I learn, no matter the source, back into the scriptures.   Lately I have also taken to using an electronic version of the scriptures to help locate material or passages which relate to a topic.