Originally Posted by Maia B
I have great results with Aurifil cotton 50wt, and I always have pieces of it leftover from rethreading my machine (since one is supposed to clip it at the spool and pull it through the needle). I also use Masterpiece by Superior. They have two sets of about 36 bobbins of every color they make. I also love 100 wt silk thread by YLI, but I don't have as many colors of that, so I mostly use it for light, neutral backgrounds.
Superior also have nice sets of Bottom Line bobbins in variety of colors for hand applique. They also have sampler sets of silk thead