Before I new about PRing last semester in college I had read up on brain functioning and took a class on Psychology. What I started doing in all my other classes was every day at the beginning of class I told myself, "Everything I hear and read in this class today I associate with (the class name)" and I tried to keep that idea in the back of my mind during class. This technique definitely works as it has 4 months since my classes and whenever I think of those class names, images flood my mind from the class. Its a great technique to work on.