Back to School Week: Essential Supplies

What do you need to make a successful school year? Here's my list for school supplies:

• bag/backpack/messenger bag: Take in account your budget, your needs, and your style.
• Binders or notebooks (some professors have specific requirements)
• Planner
• Lots and lots of paper. And more.
• Pens (some people love pencils tho!)
• Computer
• Printer (lucky you!) or be prepared to visit the computer center
• Highlighters (I never liked these and only used them for doodling.) 
• Hand sanitizer
• College ID
• Post-its
• Umbrella: I like the auto open and shut ones. (Fact: mine was stolen the first day of class! And my new hairdryer caught fire. Ha.)
• Tissues: some rooms can be soo cold!
• Layer your clothing: too cold or too hot classrooms
• Water, coffee, and/or snack (if permitted)
• Calendar to keep track of assignments
• Folders
• Memory stick
• Instant cleaning stick (like Tide to Go) for those messy food accidents on clothing
• Stapler
• Calculator
• MP3 player
• IF YOU FAIL TO PLAN, YOU PLAN TO FAIL!

Other than what's listed above, what can you think of other essential school supplies?