Related:

• When you go to buy, use your eyes, not your ears. Czech Proverb
• When you go out to buy, don't show your silver.
• Murphy's Third Law for Husbands: The gifts you buy your wife are never as appropriate as the gifts your neighbor buys his wife.
• Your dentist will buy a yacht.
• Now I'll give YOU something to believe. I'm just one hundred and one, five months and a day.
  I can't believe THAT!" said Alice. "Can't you?" the Queen said in a pitying tone....
• Extravagance: Anything you buy that is of no earthly use to your wife. -- Franklin P. Adam
• When you are in it up to your ears, keep your mouth shut.