weaning myself

Or attempting to, anyway. I'm trying to give up petroleum products in my shipping. This morning I bought 250 feet of corrugated cardboard and drug out my paper shredder. I'm afraid to completely give up the bubble wrap, but I'm using less of it. One possible downside- the packages might weigh a bit more, which would increase shipping somewhat. What do you think? The guy at the packaging warehouse thought I was nuts and wanted to sell me on the foam egg crate-type material (be still my heart, pottery arrives perfectly cushioned, as if traveling on air), but the stuff can't be recycled at all. My hope is that if you get a package from me, you'll reuse the bubble wrap and chuck the rest into your recycling bin.