I use the plastic containers from Walmart too that has the clamps that holds the lids in place - the snap down clamps - I also use small zip lock bags too with my Magnetic Needle Holder for my pins and needles...and so forth.
I carry all of this in my big white/red Tote Bag. i need to get a Tackle Box or something so it will be easier to store my stuff in like Needles and etc.
I love all of these wonderful ideas.