Certain eateries are pretty much guaranteed to have a line—an omnipresent one. Maybe a thunderstorm will shave off a few minutes from the time suck, but you should still plan on packing a book, a chatty companion, or just text back everyone you've had a missed call from since forever ago while waiting. Grimaldi's pizzeria on a sunny weekend afternoon: easily an hour-plus. Same with Shake Shack. Dottie's True Blue Cafe in San Francisco is another such place. On weekends, you can bet there are more people queued up than actually eating in the 40-seat diner. What's the longest you've waited for food? Did it feel worth it?