Notes and good habits with them can make your grade JUMP. They can also help you get a date if you have them in a good format--which I'll explain now:
What I learned to do that made a difference for my grades and my understanding of the class was to take notes in a different way: first, I wrote with symbols and abbreviations to take shortcuts. For instance, "as a result" became an equal sign. Something that meant growth or decline became an upward or downward arrow. If I knew that a certain phrase would be used many times (I also tried to read ahead), I would write that phrase in the margin of my notebook, then abbreviate it and circle it too. Then, when I heard my instructor SAY that phrase, I would use the circled abbreviation instead of writing down the actual words. It saved me a lot of time: I heard "educational psychology" so much that "EP" became a fast code for me.
Next (and this is crucial): I went home and typed up my notes on my PC. I used bullet marks and indenting to help. This way, when I had to study before an exam, all I needed was the printed typed version; it actually helped me cram much better too, which works for me. (This is how you can get a date: if there's someone you want to study with...and I assume THAT is also an intention...you fiend...good notes can help.)
Finally, it's okay to drill your memory on a test before you take it. One method I learned in a graduate education class for a final exam was to do word association. We had to learn two columns of 10 ideas. I would learn three sets of ideas on one column, get them down cold, and then learn three more on the second column--and repeat the process until I had all six in my memory. Then I would add more on both sides until I had all ten.
As I said in the beginning, I had test anxiety--and my grades showed how unprepared I was until I changed my methods. And as I say to students at the start of every semester I've taught, "I don't sit in a magical chair. I had to learn just as you do."