Learn Something New Every Day and make this a part of your day!
Find one guitar-related thing a day that you didn’t know already and learn it. Try to play it. It can be a riff, a lick, a chord, a scale, an exercise, a song, a melody, an altered tuning, a strum pattern, the part of a song you know all the riffs to but never bothered to learn the “boring” connecting transition sections of, whatever.