This has been on my mind a lot lately! It's definitely one of those things that will take time because it's so easy to fall back into those "plastic" traps... I love your plan and have very similar plans of my own (to include the dairy cow which I really hope to get someday!!).

I always try to purchase items that are in glass containers or jars and then when the contents of those items are gone, I reuse the jars for whatever else I might be able to store in them (homemade goodies perhaps) to avoid using the plastic baggies. I really wish milk came in glass jars... It's really annoying to walk into the store(s) now and everything is wrapped in plastic! :(