Why didn't I think of that? lol

My Hubby is always trying to think of some really great idea to make money, like inventing something or making a cool new website. A few days ago he was saying how the person who invented barcode scanners must be pretty well off. Seriously, bar codes are on everything. We were wondering how someone even came up with that idea. Haha, we are watching Jay Leno and saw that someone sold there NFL team loyalty on eBay and got $10k, and Hubby said "Why didn't I think of that?!" LOL