What Are Your Top Tips for Saving Energy?

Earlier this week, John Chu shared with us his Top 10 Tips to Save Energy and Money This Summer [1]. But since most of the country is in the middle of a huge heat wave, it sounds like a great time to share other tips about saving energy, saving money and, most importantly, staying cool. So this week we'd like to know:

What tips do you have for saving energy this summer?

You have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. Please comment with your answers, and also feel free to respond to other comments.