Meet the water bottle you'll never lose again. The Gyenno Cup ($98, originally $151) is a washable bottle that tries to make sure you drink enough water every day. To do this, it vibrates to alert you to drink. The cup also has a screen that shows you the time, date, weather, current temperature of your water, and how much more you need to drink to meet your consumption goal. Oh, and if the cup needs some cleaning or if the liquid is way too hot, it'll let you know too.