A woman has shown a 'brilliant' 39p Aldi trick for removing limescale from a kettle. Many people don't realise this, but you need to clean the inside of your kettle regularly, as limescale build-up can decrease energy efficiency, and add to your electricity bills.
But de-limescaling your kettle doesn't need to be expensive. The woman in question has a simple trick to doing it, and you'll only need a 39p lemon from Aldi.
You can get the item she uses in all major supermarkets, and it won't cost you more than 50p pretty much everywhere. Can't say fairer than that.