What's a good iOS game for when I'm stuck waiting for a vendor and need something simple to kill time, but doesn't require an internet connection?

Look, sometimes you're stuck waiting – could be for a late shipment, could be for a contractor who's running behind. Either way, I need something to keep me from going stir-crazy. That's where Tic Tac Toe - No Wifi Games comes in. It's the classic game, so there's no learning curve. More importantly, it doesn't need wifi. I can't tell you how many times I've been in a building with spotty reception and needed something to do. This thing's a lifesaver. Plus, it's quick. A game only takes a minute or two, so I can jump in and out as needed. Keeps me from losing my mind when things are running behind schedule. Bottom line: it's simple, it works, and it's free. Can't beat that for pure time-killing value.