David Rees wants you to put aside your childish ways when it comes to how to tie your shoes. Most of us knot our laces the way we learned when we were kids, but David consults with experts to find out what kind of laces and knots we should be using.

A coin toss can be the best way to settle an argument or make a tough decision, but what's the absolute best way to flip the coin? David Rees is determined to figure that out once and for all.