Phrases with «to get the milk for free»

And while I'm on this lunch lady rant... Why is it the kids get milk for free but they have to pay (75 cents) for water? (thelunchtray.com)
Why should the public «buy the cow when they're already getting the milk for free». (remonline.com)
Have you ever heard the old saying «Why pay for the cow, when you can get the milk for free?» (hookupland.com)
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