I couldn't live without my green bags! I've used them for about a year now although it is a bit hit and miss with what works.
They are great for apples, lemons, grapes, broccoli, new potatoes, courgettes, cauliflower (cut into florets first), carrots, tomatoes and peppers.
Not good for bananas, mushrooms and salad (although the green boxes are good for salad).
You just have to remember to fold them over at the top (not twist them or tie them) and I keep everything in the fridge. Then turn them inside out, wash with cold water only and re-use them about 8 times each side.
Everyone used to laugh at me with my fridge full of green bags but now all of a sudden since all our food bills shot up they're ringing me up asking "where did you say you got those bags from" and "how do they work again?"
I was so pleased with them that I went for the gold ones but they were RUBBISH as mermaid says, everything went mouldy really quick so they went back! They also had some green bags with a zip slide top and they weren't as good either.