When you can get a dozen Philips LED bulbs for just $26, there’s really no reason not to upgrade every lamp in your house. These put out the brightness equivalent of a 60W incandescent, but with only 9W of electricity each. Plus, many local utility companies offer rebates when you buy these things, so they should pay for themselves in short order.

A few caveats to mention. These bulbs aren’t dimmable, which is par for the course at this price, but just be aware of it. Also, they’re daylight bulbs, which are great in rooms where you want to be active (think offices, the kitchen, bathrooms), but aren’t ideal in rooms where you want to relax. For those, you’ll want to opt for soft white bulbs for a few dollars more.