Brilliant thread StarDreamer!
I have loads of these, but the one that first comes to mind is laundry liquid.
It’s the best thing for cleaning nearly anything.
Baths (soak over night, it turns out gleaming - it makes the house smell nice too), stains on carpets, crusty oven trays.
Antiperspirant is a more effective (and much nicer smelling) air freshener.
I always had a can of it in the loo at school that I shared with the kids
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Old sayings with a theme 2 ( continuing *nanna8*'s thread)