From the good ideas gone wrong department comes this diminutive glowing message board. Sure, leaving messages is great, and hey, glowing is neat too, but what's with the fact that it needs to be stuck on an outlet? Basically, you can bend down to over the baseboard and leave a very short message for someone to maybe see.
And for $17, you could get a bigger white board that could go on a wall at eye level and be big enough to hold more than 4-word messages. Maybe next time, glowing mini message board.