+ Clean off your desktop
I acquire so much junk on my laptop throughout the semester, and it doesn't get much better than being able to drag it all to the trash once you've taken your finals and the classes are officially over. Delete old files that you won't need again to save storage on your computer. I also suggest creating a "First Semester" folder to hold each class's folder from the first semester for easy access in case you would ever need any of it. Then, make new a new folder for each class to put documents in for the new semester.
+ Buy new notebooks and highlighters
This is hands down my favorite part because I am the biggest school supplies junkie alive. I think it's definitely worth the investment to get Five Star notebooks because even though they are pricer than others, they never rip and have sturdy folders to store papers in. I also always seem to go through highlighters quickly, so I'll restock those and sometimes a pack of pencils too.
+ Make your schedule visible
I don't know about you, but I always second guess myself about which class I have when, where and what room number it's in. (It's probably the nerdy college freshman in me :) On the first day I'll usually make my phone background my schedule so I can check it easily, and I recommend printing out a hard copy to put somewhere convenient like your planner.
+ Get to your first classes 30 minutes early
First semester, my 8 am Finite class was in the Geology building (somewhere I wasn't familiar with) and it took me so long to find my classroom in it. Luckily, I got there early enough on the first day to find the correct classroom and grab a good seat before class started. If possible, I recommend walking out your schedule before the semester starts to make sure you can get from class to class in the amount of time you have. I ended up having to switch classes last semester because I couldn't make it from Finite to Spanish in 15 minutes!
I'd love to hear any advice you have for preparing for a new semester in the comments below!