A paper towel is just what you need to keep lettuce fresh for a few extra days. This can mean the difference between enjoying a salad with your dinner or having to trek out to the store to replace the lettuce that’s quickly gone bad in the fridge. The towel absorbs excess moisture from the lettuce, keeping it a bit dryer and fresher. If you don’t use the lettuce right away, replace the towel (a paper napkin will work, too) daily.
Before you use the lettuce, rinse it again (even if you rinsed it before storing) and spin it dry with a salad spinner.