Did you know hair is compostable? With the caveat that it should not be chemically treated (colored) or contain a glut of mousse, gel, or hair spray, hair is wonderful organic material to add to your compost bin.
For the truly green of thumb, those follicles can be used directly in the garden as root support or—get this—as a weed and animal deterrent. When buried inside the garden bed itself, it can improve poor quality soil by slowly releasing nutrients and nitrogen into the dirt. (P.S. Dog hair is also compostable, provided Sparky hasn’t gotten highlights recently.)