when I bought my long arm 3 years ago, I also bought all her rulers and thread--3 footlockers of thread. Most colors have multiple spools and also at least one bobbin with thread on it. I currently put like colors and any bobbins with that thread on it into a zip-loc and divide by color into one of the 3 footlockers.
I am looking for an idea that would keep all the like colored thread together and also be able to store the matching bobbin together, keep light and dust off it, but also not have me continually digging among my bags of cones for the "perfect" thread choice.
What do the rest of you use?