Refill scheme is like a game where you can keep playing and get new items without having to buy them over and over again.
Let's say you have a juice box that you really like. But, once the juice is gone, you have to go out and buy a new juice box if you want more juice. This is where the refill scheme comes in.
With the refill scheme, you can take your empty juice box back to the store and they will give you a new one full of juice. You can keep doing this over and over again, getting new juice boxes without having to buy each one individually.
This way, you save money because you don't have to keep buying new juice boxes. Plus, it's good for the environment because you're not throwing away all those empty juice boxes.
The same idea can apply to other things too, like water bottles or printer ink cartridges. When you run out, instead of buying a new one, you can take it back to the store and they will refill it for you.
So, the refill scheme is a way to keep using the same item without having to keep buying new ones, saving you money and helping our planet.