Forgive me if this was already posted, I read about the last 5-6 pages of posts.
Bed Bath and Beyond will accept coupons, (even expired ones), you can go to a local store, ask for a scanner and list of dorm supplies. You scan the exact items you want and they will be waiting for you at a store close to campus, you can change your mind on items and pay when you pick them up. Don't forget a surge protector and laptop lock. Please check your housing agreement at your college, they usually list items NOT allowed in dorms.