I'm always looking for ways to secure my mobile phone — yet also keep it handy — on the boat. My latest discovery is the CupFone ($34.95) from WeatherTech. The base fits inside a drink holder and features an adjustable cellphone bracket on top. CupFone swivels 360 degrees. The bracket tilts and locks to optimize viewing. And the holder adjusts to the width of any size smartphone. Five interchangeable bases offer a snug fit in virtually any marine cup holder. I use my CupFone in one of the drink holders at the helm. I also got one for my tow vehicle.