TED: How to use a paper towel | Joe Smith

The video discusses the excessive use of paper towels in the US and introduces a method to reduce this usage. It explains various types of paper towel dispensers and common usage habits. The main focus is on the 'shake and fold' technique, which is demonstrated to be an efficient way to dry hands using only one paper towel. The video concludes with practical tips and a call to action to adopt this method for environmental benefits.

What is the significance of the number 12 in the context of shaking hands?

What is the main takeaway regarding the use of paper towels as mentioned in the presentation?