Mobile Minutes: Lyft and MADD; gross sales; hotels’ Wi-Fi problem; connected cars

Ride-sharing service Lyft is joining forces with Mothers Against Drunk Driving to promote a safer New Year’s Eve.
Move over, couch commerce. Retailers are trying to get shoppers to buy stuff while sitting on that other seat: the toilet.
Modern technology has made it possible for people to set up their own personal Wi-Fi networks anywhere they want. Except in the occasional Marriott.
Mark Fields remembers being treated like a Neanderthal when he joined Microsoft Corp. co-founder Bill Gates on stage at the Consumer Electronics Show in Las Vegas to introduce the Sync in-car infotainment system.