I used the Erin Condren LifePlanner (starting at $59) throughout college, and this planner might be the only reason I was able to pass my finals each semester. Truly the most customizable option out there, the Erin Condren planner allows you to pick your cover, layout options and style, size, and more. Plus, for an additional cost, you can add in more pages if you're looking for something extra. I'd recommend adding on a sticker pack to really make your study group notes more fun.