Give new hope to an old and broken thing by fixing it. You'll also be thwarting dastardly manufacturers who cunningly build obsolescence (like total battery failure) into new things to make us buy their 'new and improved' models over and over again. Go on, fix your old thing, wipe the smile off their cunning faces and make them gnash their teeth like second-hand threshing machines.
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Here's a thing...the combined weight of the 100 million fridges, TVs, computers, mobile phones and other such things that British people throw away every year is around 1 million tonnes. That's the same as 2,400 jumbo jets. We should fix that.