<prompt> Human: Just about every day, someone on this sub advises another to reign in your spending. While this is great life advice, it is an etymological error. The correct phrase is rein in as in the reins of a horse being tightened opposite of free rein. The phrase has nothing to do with the reign of a monarch.End rant, Ill crawl back in my nerd cave now.  <response>: A local politician sent out a pamphlet a few years ago announcing he was going to Reign in Spending. At least he was honest. 