I don't personally resonate with the idea of "boycotting" things, mostly for the fact that these companies will never miss the $20 I would have spent on them. "Boycot" to me, implies some sort of noticeable statement.
For me, when Im thinking about getting a Chik-Fil-A or something, the question is simple: "Do I want to give my money to these people?"
This would become my full-time job if I ever became independently wealthy.