Double up on windows
Lots of windows let in natural light, but if they're single-pane windows, they're letting out a lot of the air you're paying to heat and cool. The good news: You can have a bright house and lower energy bills if you get durable double-pane windows. They'll reduce heat loss in the winter and heat gain in the summer. Plus, they'll also help reduce noise pollution, so your loud neighbors won't bother you -- at least, not as much.
