Make a Playlist Together
Just because you're long distance doesn't mean you can't make something together. Build a playlist of music with your BFF that includes both of your favourite songs, as well as new recommendations you think the other will love. It's a fun and easy way to stay connected (maybe both listen to it on your morning commute?) and is something you can both update regularly. Plus, it'll hold you over until you see each other again and can have those sing-at-the-top-of-your-lungs best friend car rides.