technically speaking all you need is a mixture of water, vinegar, baking soda and lemon juice to clean your entire house.
Commercial window cleaner is pretty much 50/50 water/vinegar with some colourant in it.
(
riverghost servicing your mum since,
Wed 18 Aug 2010, 12:39,
archived)
I have an all-purpose barrel of whiskey in the house
to use for cleaning, eating, drinking, deodorant, wound treatment, medicine, and flushing down the toilets.
(
mediocre ha ha ha, you're reading this,
Wed 18 Aug 2010, 13:35,
archived)