Low-Tech Fixes for High-Tech Problems

Low-Tech Fixes for High-Tech Problems - NYTimes.com: "BEHIND the cash register at Smoke Shop No. 2 in downtown San Francisco, Sam Azar swipes a customer’s credit card to ring up Turkish cigarettes. The store’s card reader fails to scan the card’s magnetic strip. Azar swipes again, and again. No luck."

As customers begin to queue, he reaches beneath the counter for a black plastic bag. He wraps one layer of the plastic around the card and swipes it again. Success. The sale is rung up.

“I don’t know how it works, it just does,” says Mr. Azar, who learned the trick years ago from another clerk. Verifone, the company that makes the store’s card reader, would not confirm or deny that the plastic bag trick works. But it’s one of many low-tech fixes for high-tech failures that people without engineering degrees have discovered, often out of desperation, and shared.