If you shop at OfficeMax, keep your eye out for a Sharpies coupon tearpad with the back to school sale displays. Some stores are out of these coupons already, but if you can find them you can get an excellent deal on Sharpie pens! Here's how:
Buy 4 Sharpie Blue or Black Pens, 2 pack - 2/$3
Use 1 $5/3 any Sharpie products, excluding singles
Final Cost: $1 for all four packs, or just $0.25 a pack!