If you live in the city and the sounds of cars and sirens are keeping you up at night, consider making white noise. The whir of a fan can help cover up the noise and contribute to a quieter, more restful sleep.
If you're in the market to buy a new car, thinking fuel-efficient hybrid would obviously be the way to go. But there are other simple things you can do, too, like choosing the right paint color. A lighter-color car is a smarter choice because it deflects heat, helping your car stay cooler in the summer months. A darker color absorbs more heat, which takes longer to cool down.