You know you should wear sunscreen and you probably do, but remembering to reapply is another story. Enter the smart bikini that sends an alert to your phone when you’ve had too much sun. Spinali Design has just released a line of customizable bikinis with an integrated UV sensor and associated app. Enter your skin type into the app and it along with the sensor will keep track of your time in the sun and tell you when its time to reapply sunscreen.