1. To clean bathroom tiles and grout naturally, try a solution of 1/2 cup of baking soda in 2 gallons (approx. 8 litres) of warm water. Apply with a clean rag or soft toothbrush.
2. To scrub out or blot a stain on a cushion with a slip-cover, put a sheet of plastic between the cushion and the fabric, to prevent the stain from becoming absorbed by the cushion.
3. Most shower curtains are machine washable. Wash yours with some water, detergent and a bit of bleach (for disinfecting), plus add a few towels for abrasion.
4. To clean your dishwasher, consult your dishwasher manual for cleaning instructions, as the methodology may differ based on the interior finish of your machine. Most recommend running the machine with either vinegar, a light bleach-in-water solution, or a brand-name cleaner recommended by the manufacturer.