This stackable 12-piece Martha Stewart Food Storage Set is on sale for $39.99 at Macys.com, which is 30% below its regular price of $56.99. Apply code VG33W4 at checkout to receive an additional 15% off, bringing the price down to $33.99 and the best price we can find for this collection. The set features six glass containers with six air-tight plastic lids. Spend $99 or add a beauty item to get free shipping. Otherwise add $9.95. Sales tax is charged in most states.