I use large binder clips when layering my quilts for pin basting. I lay the backing down making sure it is smooth and taught, then binder clip it onto my cutting table, then do the same w/the batting and then the top. The clips hold it in place until all the pins are secured.
I also use the binding combs (the plastic things you see on some business proposals) to store my bobbins. I got them at Staples. they are very portable and they keep the thread from being snarled.
Marie