Use one half of your lemon as a natural abrasive and sponge at at the same time! The lemon juice acts as an acid to help remove hard water, while scrubbing in circular motions with the lemon itself ...

Sometimes a hack doesn’t need to be rocket science to be useful. Take for instance [MofigoDIY] using an old spark plug to build a glass cutter. Sure, going to grab a glass cutter at the hardware store ...