Wouldn’t you love to be able to check in back home in full visual color while you’re on vacation? Now you can, thanks to Dropcam’s new HD Wi-Fi camera, which offers possibilities for live-streaming as easy to set up as 1) open the box and remove the camera, 2) plug it in and connect to your Wi-Fi network, and 3) name your camera and create a free account. You can then receive alerts for motion and sound on your smartphone or other device. You can even set it up so you can drop in live and talk directly with people or your pets. Dropcam retails for $199.