photo credit: red paper clip
Patanjali bless YogaWorks. My YTT curriculum and books are educationally solid. One of YW's little gems is their Shoulder Girdle Mantra:
widen across the collarbone
shoulder heads back
shoulder blades widen away from each other
and descend down the back
I find this extremely helpful from both the student and teacher perspective. We carry so much tension + stress in our shoulders. Often, the weight of the world is supported there. With this little mantra, you'll remember to open your heart and let the tension slip + slide right off.