I blew a tail light bulb and sought to replace it. I’ve bought them before. They’re not expensive.
I went into Advance Auto Parts up on Putney Road, because it was convenient – I was already in that part of town. The clerk asked me about the car it came from, make, model, year, and then looked it up on a computer. Then he went in back and came out with two bulbs, neatly packaged in plastic.