I tried the note cards method, but it didn't work for me. I also used some website to make my note cards online cause I can type faster. That's also too much work. Now I just study the slides. It didn't work for me at first cause I barely had time to go over them twice, but if you can go over them at least 4 times, it will stick. It's not just reading the slides. It's actually reading and understanding the slides. I find that every time I go back to read the slides, there are things that I didn't see before. I also highlight a lot. I use many different colors and for some reason, it helps me remember better when I highlight as I study.
There are people in my class who retype the notes and put it in a table format. Some people just rewrite the notes during lunch and then just study from there. I have a friend who writes repetitively until she remembers it. That doesn't work for me cause my hand gets too tired. I still make note cards for important stuff, not everything. That way I can look at it quickly right before the exam.