After the gifts are opened and the eggnog is all gone, many people are left with stacks of cardboard boxes, discarded wrapping paper, and maybe an empty bottle of wine or two. But more of those ...

We may receive a commission on purchases made from links. Someone got a bright idea, and convenient smart Christmas lights were born. Smart Christmas lights use Wi-Fi to communicate with a phone or ...

We may earn a commission from links on this page. Credit: René Ramos/Lifehacker/Fuse/Corbis/Getty Images This series will help you pick the perfect presents, decor ...

How the first Christmas tree lights were designed and utilized. Learn about the technology involved in creating the display. How a campaign brought Christmas tree lighting to the masses. It had only ...