By now, you've probably heard of Internet-based ridesharing apps like Uber and Sidecar that let you hail a ride with the touch of a screen. They're often cheaper than taxis and because of that, they're in most major cities and their popularity is booming.
For years, cities and states — bodies that regulate transportation — have struggled to figure out what to do about them. Recently, California took the first steps towards legitimizing them.
In Los Angeles, Lyft is one of the biggest ride-sharing companies.
Christine Porter is hooked on the MyFitnessPal app. In October, after deciding to lose 50 pounds, Porter started typing in everything she eats, drinks and any exercise she gets.
"This is my main page here," says Porter. "It's telling me I have about 1,200 calories remaining for the day. When I want to record something I just click the 'add to diary' button. I'm on it all day either through my phone or through the computer."