Why buy water in a plastic bottle?

.... when

• 40% of bottled water is just tap water in disguise
  
• A plastic bottle takes an average of 1000 years to degrade
  
• transporting bottles of it around the country is estimated to create more than 33,000 tons of C02 emissions - equivalent to the annual energy consumption of 6,000 homes, or driving your car round the world about two and half thousand times.
  

We have recently bought each of us a metal water bottle and won't be buying any more plastic bottles of water. The tap water in the UK is amongst the cleanest in the world, so it makes sense to save the money and fill from the tap.