There is a great $0.55 off Hefty® Slider Bags coupon available. You should be able to get these pretty cheap when paired with a sale and doubled coupon. Currently (through 6/14) you can grab them for ONLY $0.30 each at A&P or Pathmark:
Buy 5 Hefty Storage Bags ($3.29) $2 each = ($16.45) $10
Use 5 $0.55/1 Hefty Storage Bags Coupons or from the 5/13 SmartSource insert
Pay $ 4.50
Get $3 Catalina
= $0.30 each!