on the same topic, do I buy sunscreen from evil Amazon (that will subsume everything) for $9.72 plus free 2-day delivery, or from REI for $12.95 plus good karma plus extra ½ hour to stop by there on the way home ?

Do I get the much more energy-efficient but less-attractive curtains over R’s objections, or do I do nothing and keep wasting a lot of (electrical) energy and heating up the planet while keeping the peace at home?