Lynn,
Loved your article. Of course my problem is excess. I would have to find a dairy or a family with 18 children to have enough bottles. I just got through planting 7K iris seeds, for example. That was in ~200 8" pots.
I do like the "mini cold frame" aspect of the process. I have long sheets of Remay that I cover the pots after germination has occurred and if it's getting cold. That protects down to 22F and I am in a very protected location. My front yard has only had frost once since I've lived here.
Kevin