A picture may be worth a thousand words, but in a he-said, she-said customer service dispute, it might be even more valuable. A well-timed screenshot could score you a refund you deserve.
Consider how almost everyone who rents a car these days takes pictures before accepting the car and when returning it. A picture is pretty good evidence that those dents weren’t there when you brought back the vehicle.
Images also come in handy when you have a dispute with an online vendor. With a picture you can claim “That’s not what I typed” and you can prove it. How do you reply when the company rep says you made a mistake? And do you remember exactly what you typed? How many items you actually ordered? For what date? What did those terms and conditions actually state?