At the Saturday Santa Cruz yard sale, I purchased a big container of buttons of three dollars. I'd also arranged an exchange with a fellow freecycler yesterday for a bag of sewing materials for a few clumps of monkey grass. I picked up the sewing materials yesterday, and they also contained a nice assortment of buttons.
So, dumped them out all together and started the sorting ... by color ... process. This is a slow process. Keeping up with all this stuff is becoming quite time consuming all in itself.