Add a water hippo to older toilet cisterns to save up to 3 litres with every flush - it could also save you £20 a year on metered bills. They're available from most DIY stores or visit http://www.hippo-the-watersaver.co.uk/ Alternatively add a 2 litre water-filled plastic bottle to your cistern - check it regularly to ensure it is not interfering with your flush lever. (Don't use a brick - they crumble and the dust can clog up working parts of your cistern). If you're buying a toilet, new dual or low-flush loos are 2-4 times as efficient at saving water, so check out local suppliers to see what's available.
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