Here’s a self-proclaiming gadget that could erase your stress. The StressEraser Portable BioFeedback Device monitors your stress level by simply having you slide your finger over its screen. The process will let you know your heart rate, which if appears high, will tell you that now you need to calm down. The device will also guide you to relax yourself through rhythmic breathing according to your heart rate. Another feature that works towards relaxing you is that the screen goes haywire, when you’re stressed and become smooth when you’re calm. It sells for $172.36 Amazon.