Yes, electricity. Imagine my surprise. 😕

I invented the spork but it already existed 😂

Not me, but my ex brother in law. There wasn't a thing that he did not think of first.

Yes. Then I saw it at Wallyworld. A large pot with a screw on lid with holes for draining pasta.

Yes that has happened to me also, one time I thought of something new and looked at all the stuff you have to go through to secure a patent on your idea and got discouraged, dropped the idea, it is just too expensive.

Extra long menstrual pads with wings, diapers for babies that have a pocket with a babywipes inserted, (Jamie Lee Curtis beat me to it).

Thought of creating time Portals or find one by meditation. But it is hoax right?

Just do like the Chinese, just copy everything, make it cheaper and crapper, support a vast nuclear programme with potential for world domination! Easy! 😊