Watch-it-Wednesday: 14 Money-Saving Life Hacks

It seems like we see - or read about - a new "life hack" on a daily basis. Many of these claim to be thrifty, frugal, and all-around money-saving must-knows. But which ones really work and really save us time and money? Check out this video, where Mental Floss puts fourteen popular "money-saving life hacks" to the test!

What are your best money and time-saving life hacks that really work? We'd love to hear about them!