Single queue multiple registers work really well. Especially for high volume (see: whole foods). Teaching customers how to use them, on the other hand..... An

Single queue multiple registers work really well. Especially for high volume (see: whole foods). Teaching customers how to use them, on the other hand..... And for some situations, like a movie theater box office, a single long line actually drives people away (on non-blockbuster-opening-nights) because it looks like a big crowd, compared to two small lines. Even if it means they'd get through it faster. .... at least, before the age where everyone just buys their ticket on fandango.