Wizend, bagged up salad will keep for a a week if placed in a clipped box which has lined with paper towels. Also one sheet of paper towels on top of salad.
I love salad, live by myself ,and only go shopping once a week. I have one box for spinach and one for salad mix. Also purchase half a cucumer, again wrap in Kitchen towel will last a good week,.
I try to throw out as little as possible of any foods. Do not take any notice (indeed do not notice) BBdates. I was quite annoyed with a teenage g.child who was making themselves a cup of coffee in my kitchen and looked at the date on the milk before using it. Pointed out that of all foods, milk is one of the easiest to know if it is turning or off - just use your nose.
I still cut off any mould that may develop on hard cheese, and then use the rest of the cheese, same with jams, etc. I do not have the best digestive system, my colon has been removed, but never suffer from any type of food poisoning.
So much good waste, most of it totally unnecessary, so many people still going very hungry!!!