If you have poor posture, you may want to take a look at this little device. It's called the iPosture and it reminds you to sit up straight. How does it remind you? By giving you a tiny little zap. Now, are we going back to the days of Pavlov's dog to change behavior? MSNBC has an interesting little piece on this device. You can read it here and decide if it's worth $65. Image source: MSNBC.