In this video, John Green from Mental Floss is back to test 14 popular money-saving hacks that are slinking around the internet. More of them pass than you might expect.
You've probably seen some of these hacks here, including shaving with peanut butter. His tests aren't always perfect or scientific in any way, but he always tests some great tips. Not only can you see if these tips work, but you can see how well and get a good laugh all the while.
14 Money Saving Life Hacks [YouTube]