Knitting Ruler

One Ruler to Knit Them All!!! There's a subculture in tech making, of people who make circuit board rulers.  It's exactly what it sounds like - a ruler made out of circuit board material, that helps you make circuit boards by having handy references on it for patterns and sizes of things that go on circuit boards.  We've made a few of those, and got to thinking - why haven't we made a Knitting Circuit Board Ruler?  Well, now we have! This ruler's got EVERYTHING. needle gauge from a crazy tiny 00000 / 1.0mm all the way up to sz 13 / 9mm, a 2" x 0.5" swatch window with 2cm x 0.5cm marked on the other side 0-6 inch ruler with both fractional and decimal markings and a metric 0-15.2cm ruler on the other side (are you noting a pattern here?) chart symbols for K2tog and SSK  chart symbols for M1R and M1L with a handy note on how to do each Kitchener reminder for the order of knitting on and purling off marked stitch / stitch marker short row shorthand explanation.  "This is the shit I alway