Did you know that jeans have a watch pocket?
Today I have learnt that the little pocket on the right-hand side of a pair of jeans is called watch pocket . (source: http://www.fcaministers.com/ ) It was invented in the late 1800s by Levi Strauss (1829-1902), to help cowboys storing their watches. Nowadays it used for different purposes as to keep coins and for this reason it is also called coin pocket.