Looking for perhaps the simplest and cheapest way to get Netflix and YouTube on your TV? Grab ahold of the Google Chromecast ($35) dongle. This streaming stick pops into your TV’s HDMI input and wirelessly takes video from smartphones, tablets, and laptops running the Chrome browser. It works with both Android and iOS, and Google’s ponying up three free months of Netflix if you score one now. Plus it gives you another reason to say ‘dongle.’