Years ago I read a study somewhere about which lane moves fastest in the supermarket. Apparently a supermarket viewed from overhead more often than not looks like a normal curve, with the longest lines in the middle lanes and the shortest on the outer ends. So ever since I’ve been going to the outer lanes in supermarkets. I very much doubt this has saved me any time, but I always tell myself “Remember that study” when I pick a lane. And of course Apu on The Simpsons explained further refinements long ago.
Now, Jason Kottke points to a note explaining one reason why the express lane is often slower than other lanes.
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Panther Red 