Amazon offers a selection of Hefty Silder Bags for $14.99. Clip the 25% off coupon on the product page and add to cart via Subscribe & Save to drop each to $10.49 and score free shipping. The deals, with prices via the directions above and comparisons to local stores:

• Hefty 1-Quart Slider Storage Bags 184-Count for $10.49 (pictured, low by $7)
• Hefty 1-Quart Slider Freezer Bags 140-Count for $10.49 (low by $7)
• Hefty 1-Gallon Slider Freezer Bags 96-Count for $10.49 (low by $1)