Country people could cure whooping cough by taking the child to breathe in the smell of cows in the byre but city fowk had to take their children to the gasworks as the fumes from the gasometer would ease whooping cough.
Always have a penny handy to give to the person who picked up your dropped glove.
Never wear purple and black together. I once got into terrible trouble for combining those 2 colours of crepe paper for a window display - it foretells death.
Kiss a black man and it will bring good luck (I wonder what the black man thought?) [smile)
Never do washing on Sunday (or do it in secret and dry it inside)
Women with pierced ears were 'no better than they should be'.
My father was furious when I spent my birthday money on having my ears pierced, at 18 - and both ears became infected almost to pay me back for disobeying him 
Crossed knives on a plate mean someone will quarrel.
Always keep a sixpence in your purse in case your suspenders snap.
This piece of advice stood me in good stead on several occasions.
To keep up your stockings (it was unheard of to go without stockings unless you were at the beach on holiday) you turned over the stocking top with the 6d inside, then twisted the coin to tighten the nylon. When it was so tight it almost cut off the circulation to your leg, you folded it over to keep it in place. It did the trick until you got home.
Shaving your legs makes it grow back twice as thick.
If it did, my sister would now look like an Afghan hound.
Drinking a glass of water whilst holding it upside down (and your head with it) stops hiccups. Likewise putting a key down someone's back or giving them a shock.
I'm sure our parents didn't really believe half the nonsense they told us. 