Yesterday, I had occasion to measure a piece of glass for a window in an ensuite chez moi. Having dropped my measuring tape between the cavity wall, I was forced to improvise, by using two bits of wood. The width being less then the height, I added the second piece by means of a *****. Therefore achieving both dimensions by a simple pivoting of the short arm.
The glazer said it was the first time he had encountered this form of lateral and vertical thinking from the same mind.
In France, back in medieval times, builders used Baguettes to measure everything, as they were exactly a metre in length.
Today, anyone familiar with renovating old buildings in France, will confirm this story as the permutations of 100 cm's is visible in every opening.