So this isn’t really technology, but it’s a really geeky way to keep your to-do handy, if you’ll pardon the pun, which I hope you will.
You write your list on a special piece of paper-like material and then transfer the text to your hand, just like some sort of tattoo you’d get in CrackerJacks.
I’m sure somewhere there’s a similar product that allows you to create you own temporary tattoos. I need to find it.
Keep a to-do list in the palm of your hand [Popgadget]