Thames Water has made a song and dance about that fat which Londoners pour down their drains over the festive period and which clogs up the sewers. It advises leaving the fat to cool and congeal, then putting it in the bin. Oh wasteful Thames Water! In impoverished post-war Britain, mothers used to keep that fat - called "dripping" - and spread it on bread or toast with a touch of Marmite for flavour. Unhealthy, but no worse than spreading butter or any other form of grease on your sandwiches. Click the title link for the Singing Sewermen's YouTube video and Thames Water will donate 1p to Water Aid, a charity which works to improve access to safe water and sanitation for the world's poor. Or donate directly: CLICK.