var tips = new Array();
tips[tips.length] = "Eliminate draughts and wasted heat by using draught excluders; for the door edges and the letterbox.";
tips[tips.length] = "Turn down your thermostat by 1ºC, which will cut your heating bills and save energy.";
tips[tips.length] = "Wear a jersey in winter, not just a T-shirt!";
tips[tips.length] = "For hot water, most people find that water set to 55º C is fine for washing and bathing.";
tips[tips.length] = "Close your curtains at dusk to prevent heat loss - and, if possible, tuck them behind the radiator.";
tips[tips.length] = "Turn off lights as you leave the room and use energy efficient light bulbs.";
tips[tips.length] = "Don't leave appliances on stand-by, though make sure you check the manufacturer's instructions before altering any settings.";
tips[tips.length] = "Try to ensure you have a full load before running the washing machine or tumble dryer. Or dry clothes outside on a washing line.";
tips[tips.length] = "Use your central heating programmer, and set the system to come on only at the times you need it.";
tips[tips.length] = "Check on your fridge and freezer temperatures - if too cold, they use much more electricity. They should be 1-3°C for a fridge and minus 16-18°C for a freezer. Suitable fridge thermometers can be bought cheaply.";
tips[tips.length] = "Take showers (not too long!) - save a bath for an occasional luxury!";
tips[tips.length] = "Buy local food where possible - supermarket produce involves long distance transport by road, sea and air.";
tips[tips.length] = "Avoid using tumble dryers and combined washer-dryers unless you have no alternative. Use a drying rack.";
tips[tips.length] = "Embrace electronic information - move away from surrounding yourself with paper! (back up your computer regularly).";
tips[tips.length] = "Don't over-fill the kettle - just boil what you need at a time.";
tips[tips.length] = "Recycle paper, cardboard, cans, bottle, textiles, food waste and garden waste. This saves a great deal of energy, in producing new products from virgin materials.";
tips[tips.length] = "Don't leave outside lights on all night - they just waste energy and add to light pollution.";
today = new Date(); 
var days = Math.ceil((today / 1000 /60 / 60 / 24)); 
var index = days % tips.length;
document.write (tips[index]);