Get an easy deal on Ziploc sandwich bags by shopping on Amazon. They have a 90-count box on sale for $3.99, plus there's a 20% off Subscribe & Save coupon on the product page. You'll end up paying as little as $2.59 for your first order.
Just remember that this order needs to contain five or more eligible items in order to unlock the highest Subscribe & Save discount.
Learn more about Amazon Subscribe & Save (including how to cancel your Amazon subscription).