I put the thread in 2x3 inch plastic bags (usually available in the beading department of hobby stores). Then I label the plastic bag. Works great. When I have a partially used bobbin from a particular color I put the bobbin in with the thread. I LOVE the thread. It is very fine and smooth. I have even done needleturn applique with it and my stitches are as invisible as I can get them with any other thread I have used.