Given that our new Yumboxes take most of the space in their lunch packs, it would good to have a few more of these space saving bags in case I do need to include a bit more food. But they're so much money! I've tried a few types, but these are my current favorite and the least expensive of the ones I've tried too, yet they're still $6.95 a pair on Amazon. Are there any deals out there, or is that what I'll have to spend? Our favorite is the Dr. Seuss! Thank you!!!