What would you do if, all of a sudden, your favorite source of books was unavailable?

I get most of my books online or in branches of one of the big chains, largely because they are both convenient and because I don’t really have a local independent bookseller where I live. So if either of my usual suppliers went out of business I guess I would just look elsewhere. What I should actually be thinking in this situation is whether it’s a sign that I should stop buying and start trying to reduce my tbr pile……..