Google's Chromecast media streaming dongle has always been cheap, but if $35 is too rich for your blood, you'll want to pay attention to a new Android Pay promotion in the US. If you make 10 purchases with Google's contactless-payment app before the end of February, you'll get a free Chromecast.

As spotted by a number of tech blogs, the offer is active now. It's called Tap10, and if you want to use it, you'll need to pay attention to a few salient details. First, you'll need to download and install the Android Pay app, and once you're there, hopefully you'll see the offer. Then you just need to make 10 purchases — spaced out by at least five minutes each — and you'll get a code to redeem your Chromecast. On the way to 10, you'll also get three free songs from Google Play. Not too shabby for one of our favorite streaming devices.