Cans and Plastic Bottles Everywhere

During the festive season, serving soft drinks to the guests is very common. The usual containers for soft drinks are the aluminium cans or plastic bottles. After drinking, what are we going to do with these cans and bottles? We simply dump them into the bins. Is this an environmental friendly way of disposing these containers? I recalled in the major supermarkets of Brussels and possibly other countries too, when we purchase a plastic bottle of soft drink, a small surcharge of say 20 cents will be added to the selling price of this bottle. During our next trip to the supermarket, we simply return the empty plastic bottle and the surcharge will be refunded. This will certainly reduces the number of plastic bottles dumped into the bins. I am wondering if this idea is feasible in Singapore.