1/2 cup Baking Soda
1/4 cup Hydrogen Peroxide
1/2 teasp. liquid dish soap (I use Norwex.)

Mix all ingredients in a small squeeze-top bottle.
Squeeze onto soft cloth and use for cleaning tubs and showers.
For a deeper cleaning allow mixture to soak on tub or shower for several minutes before scrubbing.
Rinse away residue.

I have also used this to clean grout and it works fabulous because peroxide is a natural whitener.