I can't seem to figure out how to get Google Now to show me my estimated commute times before I leave for work / home. I got the JB upgrade over the weekend, so I've had 3.5 days' worth of commuting, but it never shows me my that info. Whenever I look up a place, Google Now immediately shows me how long it will take to get there with current traffic conditions. So the traffic cards seem to work; I'm guessing it hasn't yet figured out where I work/live yet. Does it just take time to learn your routes? It would be nice if there was a way you could just tell it when and where you commute takes place, but that doesn't appear to be an option.