Now that's "green." :)
I'm pretty pleased with this system and I think it will be fun to look back on these little pieces of fabric and remember the excitement of starting a project, like a fabric scrapbook.
Meanwhile, I've been knitting swatches for socks too. I've realized the number of stitches per inch is really vital in socks and I absolutely have to take the time to at least knit a small swatch. One day while I was cruising the internet, I saw someone who knit their sock yarn swatch as a continuous tube. What an ingenious I idea! So the last few yarns I've gotten for socks I've knit in a continuous tube for my swatch.
I like this for several reasons. Again, the scrapbook affect is really cool but I also like that I can knit these swatches without having to deal with the headache of the first 1/2 inch of sock knitting. I don't like the first half inch of a sock with all the fussing to try to get enough fabric knit that you can actually grab it when you're knitting. Also the curling up of the knitted fabric meant measuring the gauge could be a challenge at best. By knitting one continuous swatch, I only had to cast on once and now I just knit, knit, knit. Even changing needle sizes is no big deal . And once I get a couple inches of swatch for my current yarn I just knit the next row of stitches onto the needles I have dedicated to this swatch and then snip the yarn. When the next yarn is ready to be swatched, I just join it in and knit along. The last step is to make sure I write down the yarn and needle size on the tag I've attached and I'm good to go. Neato!