Researchers in Kansas recently put together a list of each state's best invention that's made the biggest impact on the world.
There aren't really any DUMB things on the list. They're all pretty major and sorry kids, the fidget spinner didn't make the list. (If you care though, it was invented way back in 1993 by a woman from Oklahoma who lives in Florida now.)
Some of them are better than others though . . .
It's debatable, but the Internet might be the MOST important invention on the list. A professor at M.I.T. in Massachusetts came up with it in the late '80s.