Waging a one-person war to combine the separate checkout lines at the supermarket into one.
(It's just so much more efficient! Why have two? It makes no sense!)
@alis It depends on the customer volume. If the line gets too long, it definitely makes sense to have 2 or more checkout lines.
@Cassiopeia12727 Depends on how you look at it.
Basically the only reason multi-line queues are used is to give customers the illusion of control (if the wait is long they only have themself to blame for choosing the "wrong" queue) and because long queues freak people out. But they're absolutely less efficient, and in my particular supermarket the "benefits" don't really manifest because of the layout/rest of the store. Hence, single queue.