I use WD40 for heaps of things. It is brilliant at removing oil stains from concrete drives – just spray on and hose off immediately. Also polish your stainless steel fridge and shower cabinet with it. Stops water marks on your shower and fingermarks on your fridge door.
Gaynor from Paraparaumu says she has read it may in fact make stains worse, and instead suggests baking soda and vinegar as a cheap and non-toxic cleaning agent for brass, silver, gold, bronze, enamel, stainless steel. Also toilets, glass, fibre glass and oil on concrete.
[We have had a quick look at the WD40 website and it does recommend it for a number of cleaning purposes. However, baking soda and vinegar would be cheaper. – Oily Rag Ed’]