It is a bit hard for me to boycott costco. Seeing as I have never traded with them in the past. Now I never will.
In Florida, I have yet to see one of those 'no guns' signs. I carry and I look. Home Depot doesn't have them and I know their policy is against it becuase I worked there. Management may have decided that they prefer to have customers in the stores, instead of angry emails in their inboxes.