What's a good iPhone game for when I just need to kill 15 minutes waiting for the parts delivery to show up?

Look, I don't have time for complicated games. I need something I can pick up and put down without a lot of fuss. Solitaire-Classic Deluxe Cards fits the bill. It's solitaire, plain and simple, but it's well-made. The cards are easy to see (which is important when your eyes ain't what they used to be), and the gameplay is smooth. I've tried a few other solitaire apps, and they're either full of ads or they're buggy as hell. This one just works. Plus, it doesn't need Wi-Fi, which is crucial when I'm out on a job site with spotty reception. Bottom line: it's a solid, no-frills solitaire game that does exactly what it's supposed to do. And for a guy like me, that's worth every penny (even though it's free!). Keeps me from going stir-crazy waiting on those deliveries.