I'm never really killing time, I always try to make the most efficient use of it. When I can.
While I'm standing in line, or otherwise trying to make the most of down time, I typically use my banking app to balance my checkbook app, catch up with WWF, check in on eiC and my social media feeds, scan my email inbox, refresh my shopping and "stuff I'm expecting in the mail" lists in my notes app, and stuff like that.
Sorry to disappoint, but I really don't have a go to app for such situations. The way I look at it, the more I can clear from my schedule while mobile and standing in line or sitting at a red light (just kidding, I don't whip my iPhone out at a red light, but I know someone who does ) leaves me more minutes for more important things once I'm at home sitting in front of the TV and the Mac.
Is there someone who plays with Tap Company: Startup in Miami? I need help/advice. In the description, they say that something surprising will happen in the game, but I still haven't reached that part of the story. Is there someone who already did? When will it happen? How is it like? Is it worth it to continue playing it?