I use a reinforcements on each bobbin to hold the the to the side, then I put a golf tee through the hole and insert the tee into the hole in the spool of thread. They are stored in a SnapWare container with a handle. I keep empty bobbins and extra filled bobbins in the 7-day pill containers.
I use a toolbox with a handle and wheels for transporting my sewing gear. I will take a photo when I get to UFO this morning and post it later.