I continue to not understand why supermarkets insist on having open refrigerator and freezer sections without doors or lids (even the goedkoop in this Belgian supermarket is in open refrigerator cases). Supermarkets don’t even have those thick plastic curtain strips. Why not? It’s a huge waste of energy — and for no good reason. If you can get around a supermarket, you can probably open a door or pull up the lid on a freezer chest. Supermarkets could take a cue from that paragon of green, 7-11. The beer and soda is behind the big doors, and even the little popsicles and ice cream bars are in a freezer case with a lid (which is really fun because it always makes me feel like a little kid when I get ice cream). Tell your supermarket to save some energy and put a lid on it — or you can just whine about it on a blog.