Here are three new Staples coupons for $5 to $50 off, depending on how much you spend. They all expire Saturday, July 24, 2010, and are valid on in-store purchases. Get $5 off a purchase of $25 or more, $10 off a purchase of $50 or more and $50 off a purchase of $200 or more. The exclusions are minimal, and not surprising.

Caveats: not valid online, one per customer. Minimum purchase amount must be met with purchases to which no other coupon or instant savings offers applies (which a lot of school supplies have now). May not be combined with any other coupon. Coupon must be surrendered. No copies/facsimiles. No cash/credit back. Not valid on purchase of HP Ink and Toner, promotional products, Bose products, Apple products, gift cards, postage stamps, prior purchases or Staples Industrial purchases. Tax not included in calculating minimum purchase.

Thanks, Su May!