When your drink is too hot and you need to cool it quickly without diluting it, put the handles of clean metal table knives down into the drink for a moment. It works quickly!
Source: My husband came up with this idea.
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If you want tea or coffee to cool down quicker, just place a spoon in the cup holding the hot liquid. The heat will be transferred to the metal spoon.
Today, I was hot and thirsty. I went into the freezer to get my ice cubes, the ones that don't melt. I remembered I had loaned them to a neighbor. What was a thrifty girl to do?