My mom went to D.C. for a tech and libraries convention and came back with all kinds of cool stuff. She was quite tickled with herself and exclaimed her joy at "knowing something you don't know." Mom... you know a lot that I don't know; but touche in having a much better smart phone than me.
The QR Code. Quite possibly the most interesting technological invention yet. And what blows my mind is how my smart phone can read it! Here's my QR code that Mom made for me. It was like a 21st century way of saying "I love you." See if your smart phone can read it yo.