Distilled white vinegar, olive oil, salt, baking soda. No I'm not making supper, I'm cleaning the house. My all time fave tool for cleaning is this book. It has a recipe for absolutely anything you might need or dream up. All made with natural ingredients like the ones I listed above.
There's a recipe for anything from furniture polish to natural bleach to drain cleaner. You can practically lick your fingers while using one of these treats without fear of instant death. Although I'm certainly NOT recommending you to lick your fingers while cleaning the porcelain throne ewwww!
To just name a few, essential oils such as peppermint, lavender and tea tree are fantastic add-ins. All 3 are known for their antibacterial, antiviral and antifungal properties. Peppermint and lavender smell wonderful, tea tree is kind of on the strong side but worth it when you're trying to kill germs around the toilet! Plus a little goes a long way. When you are using essential oils it is in terms of 'drops', instead of ounces or cups, so a little bottle of essential oil seems to last and last and last.
This book covers it all and is extremely informative. It explains the evils of everyday chemical cleaners which is very helpful when you're a new convert to the natural side. And if you miss the nice lemony smell of your old cleaners, you can get it back with a little essential oil of lemon - Go Figure!