This 10-minute video from Mental Floss tests 30 life hacks circling around the interwebs. Just like last time, many of the tricks work as promised and some are comedic fails.
You've probably seen many of these life hacks before. Some of the fails, like coring a head of lettuce by slamming it, just aren't done accurately, but it's still a fun watch.
30 (more) Life Hacks Debunked [YouTube]