For new customers only, Google Play continues to offer a Google Play Music Unlimited and YouTube Red 4-Month Trial for free. That's tied with our mention from three weeks ago, a $40 savings, and still the longest free trial period we've seen from Google Play Music. Google Play Music Unlimited allows you to access 35 million songs on-demand and ad-free and to download music to play offline. YouTube Red allows you to watch videos ad-free and to save content for offline watching.

Note: Be sure to cancel the service before the trial ends; otherwise, you'll incur a $9.99 monthly fee.