Ways to use citric acid around the home:
To use as a surface cleaner, dilute in water at a ration of 1 part citric acid to 9 parts water.
Put a tablespoon in your dishwasher without detergent to get classes and crockery clean and remove any detergent spots or grease film
Clean windows with 1 tablespoon citric acid diluted in a litre of water
Descale your kettle by filling it with water and bringing to the boil, then adding 2 tablespoons citric acid and leaving it to sit in the hot water for 20 minutes
Add 1 teaspoon of citric acid to 500ml water to create a hair rinse which will remove waxy build-up you might get from transitioning to a solid shampoo, without the strong vinegar smell you get from an apple cider vinegar rinse