Yoga With Adriene is described as, "a happy and successful online yoga community which creates free creative content to inspire people of all shapes and sizes to connect to their body daily."
Why I love Yoga With Adriene:
1) It's free! Adriene has a collection of free yoga videos here. She also has paid online courses if you want to expand your practice with her.
2) You can complete a typical free yoga video in about 15 - 20 minutes -- totally doable within a lunch hour. My favorites are Yoga Stretch and Feel Good Flow.
3) You can run the videos on your smartphone, so you can do yoga anywhere.
4) Adriene is a serious yogini who doesn't take yoga too seriously -- the perfect combination!