If you use the YouTube Music app to access YouTube's huge library of songs, you might be running up your data usage.
And with enough listening, you might end up going over your data cap.
To prevent this from happening, YouTube Music now has an option that lets you stream over WiFi only.
This means you won't be able to stream songs over the network.
But it could save you money in the end.
To enable the feature, tap the hamburger button in the upper left corner of the app and tap settings.
Then tap the toggle switch to stream over WiFi only.
YouTube music isn't the only app that could kill your data plan.
Facebook, Instagram, Snapchat, and the full YouTube app all have options to only load media when you're connected to WiFi.
I'd especially recommend enabling this for Facebook, since auto playing videos in the feed will use up a lot of data.
For more on how to enable these settings, visit cnet.com.
In San Fransisco I'm Sharon Profis, Cnet.com for CBS news.