There are lots of recipes out there, and I've tried quite a few, but for scrubbing the shower, tub, sinks, and even countertops, I love this one. I've been using it for a couple of years now. It's simple, frugal, and it works!
3/4 c. baking soda
1/4 c. liquid castile soap
1 T. vinegar
10 drops of essential oil (optional)
1. Mix the baking soda and castile soap together in a small container. The mixture will be very thick.
2. Add the vinegar and mix again.
3. Add essential oil if you choose, and mix a final time.
I like to use peppermint castile soap most of the time, so I don't add the essential oil. When I use unscented soap, I like to add tea tree or lemon essential oil. Tea tree oil is a great antiseptic, making it a good choice for cleaning. And, there's a reason that lemon is so popular even in commercial cleaning products: it's an excellent grease cutter in the kitchen, and the clean, perky fragrance makes the job a little more pleasant.
I hope you'll give this easy tub and tile cleaner a try. Do you have any other favorite DIY cleaners?