6. These folders, which I'm legitimately angry I didn't have access to in college because they are so freaking pretty.
12. This notebook, which is perfect if you like the look of a grid-like layout but don't have the patience to draw it yourself.
The markers referred to in #4 are Zebra Mildliners. An early version of this post referred to them as Zebra Midliners. Thanks to commenter Emily for pointing this out!