Especially at clothing stores. Unless you are in that 80% range of sizes, good luck finding anything at all. Yes, you can go to the "big and tall" stores but everything is geared towards "big" or "big and tall" rather than "tall and thin" and priced at least 50% higher than a regular retail clothing store. It used to be fairly easy to find trousers with either 34" or 36" inseam with waist sizes under 40". Now it's mostly impossible. So I'm out of luck and forced to go online to get clothing that fits me properly. So far, I've had good luck.
Same with shoes. I wear a wide. No luck finding those in stores.