Usually Office Depot offers free next-day shipping on orders of $50+, but this week, get free shipping on any Office Depot order just because some guy discovered a new continent, or something. I don’t know.
If you need a whole lot of paper, check out the buy 3 cases, get 1 free deal on Hammermill Multipurpose paper. Combined with a code, you can end up with paper for under $3/ream.
Save more depending on what you spend! Use code 45309691 to take $10 off your $40+ order, or use code 46332983 to take $20 off your $100+ order.
(I generally use this deal to stock up on toilet paper and/or paper towels. Glamorous, I know.) (Ooooh, check out the Clearance Center, too. Depending on your area, you may find great goodies in there for teacher gifts.)