Waste not, want not

I hate cleaning out my fridge and throwing away food we didn't have a chance to eat. So here's a start:

Buy lettuce for salad, and immediately break it up as you would for salad. Put in large bowl (that has a lid) and cover the lettuce with water. Put lid on and keep in the fridge until ready to eat. Put in colander or dry on paper towels. It will keep for weeks!