I have been experimenting for some time to find the most effective yet reasonably cheap domestic cleaner and believe I've found it:
The undisputed reference formula is a mixture bicarbonate soda and something acidic like white vinegar or lime/lemon. Kitchen detergent could not compete with floor cleaner where it concerns stubborn stains so one day I added a generous teaspoon full of bicarbonate soda into a spray container full of floor detergent then left it alone overnight.
The next day, I cleaned the bathroom-cum-toilet and found it effective so topping up the bottle full, this time, I added 2 extra teaspoons full of bicarbonate soda to give it more oomph and went over to clean the other bathroom-cum-toilets and I am glad to say I'm very pleased with the results.
Conclusion
For a spay bottle like mine, full of floor detergent (Brand X will do, different brand, different colours, this doesn't matter), 3 teaspoons full of bicarbonate soda should do then like Bond said " Shaken not stirred".
