There are many simple and effective ways to make your own toilet cleaner using household ingredients. Baking soda and vinegar, borax, and lemon juice, citric acid and baking soda, hydrogen peroxide and dish soap, and tea tree oil and vinegar are some of the combinations that can be used as homemade toilet cleaners. When making the baking soda and vinegar cleaner, mix 1 cup of baking soda with 1 cup of white vinegar in a bowl or spray bottle. Pour the mixture into the toilet bowl and let it sit for 10 to 15 minutes before scrubbing with a toilet brush. For the borax and lemon juice cleaner, mix ¼ cup of borax and the juice of one medium lemon (approximately 3 tablespoons of lemon juice.) Pour the mixture into the toilet bowl and let it sit for 30 minutes before scrubbing it. If you are making the citric acid cleaner, mix ½ cup of citric acid with ½ cup of baking soda. Pour this mixture into the toilet and let it sit for 15 to 20 minutes before scrubbing. As for the hydrogen peroxide and dish soap cleaner, mix ½ cup of hydrogen peroxide and ¼ cup of dish soap. Allow this mixture to sit in the toilet bowl for 15 to 20 minutes before scrubbing it. Finally, when making the tea tree oil and vinegar cleaner, mix 1 cup of white vinegar with 10 to 15 drops of tea tree oil. Pour the mixture into the toilet bowl and let it sit for 15 to 20 minutes before scrubbing with a toilet brush. For all cleaner combinations, rinse the toilet with water by flushing it after you have finished scrubbing. These homemade toilet cleaners are affordable, effective, and environmentally friendly alternatives to store-bought cleaners. Remember to always wear gloves and follow safety instructions when using store-bought or handmade cleaning products.