Blackout curtains are usually heavier than standard ... this is your sign to invest in one: It’s a DIY essential, and you’ll get far more mileage out of it than with a handheld screwdriver.

You've been eyeing some blackout curtain alternatives because no light means no heat, right? If you're unsure if a DIY blackout curtain can do the same job as a reflective one, then the short ...