Guardian: For many of us, it’s back to work on Monday. All that’s left of the festivities is a hangover and bulging bin-liners piled at the back door. According to environmental charity Wasteonline, we generate about 3m tonnes of rubbish in less than two weeks of partying and some of that could be heading to a landfill near you. But whether it’s food, the tree or those unwanted presents, there is a better way than dumping it all in the bin. Food, foil and plastics As a nation, we waste …