Amazon's Goldbox Deal of the Day: Glasslock Snapware 18-piece set for $19.99 with free shipping

Amazon has got a fantastic Goldbox Deal of the Day today, 7/26/12: get this set of 18-piece Glasslock Snapware tempered glass food storage containers with lids for $19.99 (normally $29.99) with free shipping.  What a great price on these nine glass containers with lids.  Don't think you'll have room for them?  Look at how nicely these containers stack:

I've been slowly phasing out all my plastic containers for a while now, but I think this deal pushed me off the fence.  These containers are the perfect way to store, freeze, reheat and transport food, and then they go right in the dishwasher.

Features:
• 100% airtight and leakproof lid.
• Dishwasher, microwave, and freezer safe.
• The glass containers (not the lids) are also oven-safe.
• BPA-free.
• Stain-proof, shatter-resistant, and tempered.
• Won't absorb odors or stains.
• Easy open-and-close four-latch polypropylene lid.

Set includes:
• 1 small rectangle 1.6 cup, 
• 2 medium rectangle 3.5 cup, 
• 1 large rectangle 6.3 cup, 
• 1 small square 1.5 cup, 
• 1 medium square 3.3  cup , 
• 1 mini round 0.73 cup , 
• 1 small round 1.6  cup , 
• 1 medium round 3.1 cup

Get this set now at the Goldbox Deal of the Day price of $19.99 with free shipping.  At the end of the day, (sadly) the price goes back up to the regular $29.99.  Don't miss the deal.