So... a bit random I know. But as I am sitting here folding laundry I noticed that almost every single zipper had letters on it. The letters YKK to be exact. I was very curious so I of course Googled it (I hate not having questions answered in my mind lol). Here's my findings. Enjoy the random info. :)
http://www.straightdope.com/columns/read/855/what-do-the-mysterious-letters-ykk-mean-on-zippers
http://www.straightdope.com/columns/read/855/what-do-the-mysterious-letters-ykk-mean-on-zippers