Procter & Gamble, manufacturers of Fairy liquid, asked me to write some consumer advice about the greenest way to wash dishes. One of my bug bears is people who rinse their plates under the tap before putting it in the dishwasher – either wash the plate or put it in the dishwasher. There’s no need to do both. Another washing up horror is washing dishes under a running tap – particularly if it’s hot water. I find it very difficult watching other people wash up, if they’re being wasteful – and sometimes can’t stop myself trying to change other people’s washing up habits! Eek.