If you happen to have some money in your pocket, as most people do at any given point in time, you have more than likely not carefully folded it up and put in a spot that is free from damaging the bill. In fact, it is probably crumbled up or folded shoved in your pocket, wallet or the bottom of your purse. More than likely it is somehow damaged from the extensive handling it has experienced over the time it has been in circulation.
There are very few people whom are very conscientious about where they put their money and examine it for damage. Each and every time you pull it out purchase something I am sure you take for granted the complex printing that is behind the creation of that currency. Perhaps after you study The Currency Printing Process Infographic you will handle that precious piece of paper that goes through such a detailed and technical process.