The microwave oven, extracted insulin, and Post-It Notes…
They were all invented by mistake.
Although my discovery hasn’t saved lives yet, it has improved my productivity a lot, and it was one of those things that was caused by a mistake.
You can use it, too, and it’s totally free 🙂
Check it out on page 19 of my book http://malka.biz/work-from-home-rescue-kit/