When your lettuce goes all limp in the fridge’s crisper drawer, because let’s face it – there’s nothing about a clear plastic boxie drawer that’s going to crisp anything destined to go limp in a few days …. don’t toss the lettuce out.
Treat it just like cut flowers. Trim off the bottom a bit, and sink the leaves (standing upright) in a tall bowl of cool water. Let them cool off their toes overnight.
In the morning, drain off the water. Rinse the leaves, and you have fresh lettuce again.