And a bountiful salad begins to sound as crave-worthy as a pot of macaroni and cheese, or a big, juicy steak! You can practically watch in real time as a bag of colorful, cheerful mixed salad greens speedily transforms into a wet blob of slimy, brown-tinged mush. Peruse the salad assortment with a critical eye, and only select lettuces that are in peak condition to begin with. So if you're looking for salad that will stand the greatest chance of extended fridge survival, select hearty options such as radicchio or kale. Just raid your Tupperware drawer for an airtight plastic storage container, line it with paper towels, and loosely nestle your salad assortment inside, topped with another paper towel.