>> there is nothing you use for its intended purpose.
Pretty close! The container is often a major consideration when I buy something. Yogurt quarts, gallon jugs and half-gallon jugs all get used for years after I've eaten or drunk whatever-it-was that came in them.
I'm a little like the guy in the movie "Airplane". The damaged airplane is coming in for a landing, or maybe a passenger had to take over piloting. As it approaches the runway, someone says "turn on the runway lights!"
Then one major character gets a shrewd expression and dramatic music plays in the background.
"WAIT!! That's just what they'd EXPECT us to do!!!"
I'd hate to use a product solely for what someone expected me to use it for.