If you've been here for a while, you know I tend to gravitate toward rather...um...let's say mellow yarns.  Solids or semi solids, often in grays or purples or the occasional pond-scummy greeny yellow.  They're what I like to knit with, they're what I like to wear, and they're almost universally well behaved. But a few years ago, I started seeing speckled yarns everywhere.  And I would have expected to just sort of admire them on the shelf and move on.  But, much to my surprise, they started following me home.  But then...then I had to figure out what the heck [...]