1. A Planner
If you ask anyone, they will always say what an organization freak I am....and it's true! That's why my planner is so important to me at school. In it, I write down homework assignments, meeting/activity days, and many other to do lists. I don't know where I would be without my planner. Some places that carry great planners are Target, Day Designer, Hallmark, Lilly Pulitzer, and Staples. If planners aren't your thing, I would recommend keeping to do lists in the notes app on your phone or any journal/notebook.
2. A Water bottle
It is so important to stay hydrated throughout a busy day at school, so I always keep a water bottle with me. I use my camelbak everyday, but you can use any kind you like! I prefer reusable bottles (you should also check out the brand Swell, they have great water bottles,) but you can also carry a plastic one too. I have also seen a lot of people decorate their water bottles with stickers. If you're looking for some cute personalized stickers, check out Red Bubble.
3. A sweater/light jean jacket
Where I live, it is still pretty hot out when we go back to school. Therefore, I am still wearing some of my summer clothes. Although, some of my classes can be pretty cold so I always recommend having a sweater or light jean jacket with you at all times!
4. A granola bar/morning snack
When you eat breakfast as early as 6:30am, it is pretty easy to get hungry again by mid morning. I like to keep a snack with me during my morning classes before lunch so I can keep my energy up and feel replenished.
5. Extras: Headbands/Hair Ties, Powder, Concealer, and lip gloss or lip balm.
These last few items are definitely essentials. In case you get hot and want to put your hair up, pack some hair ties and headbands in your back pack! Don't forget some powder, concealer and lip balm in case you want to touch up your makeup throughout the day.