Freezer bags and sandwich bags are very convenient...and very wasteful. I have gotten away from using plastics when packing my lunch by using the pyrex brand round containers (for my oldest sprout we use reusable BPA-free plastic because she is still only 2 1/2). But when making baby food I can't get away from freezer bags. I feel a little better knowing that Ziploc bags are now BPA-free but even though we wash and reuse the bags (if no meat has been in them) I felt so wasteful when I eventually had to toss one into the trash. Sure, they make great, eco-friendly, super cute silicone, glass and BPA-free plastic freezer containers for the foods but when it comes to price you can't do better than some $1 (for 2) BPA-free Rubbermaid ice trays and Ziploc freezer bags. And after all, my goal is to be planet friendly but also to save my family money!