The place I go for a haircut always has a line outside the door on Sunday mornings. The line begins to form about 30 minutes before they open. This may seem like a waste of time, but regular customers know that lining up early helps you avoid the hour-plus waits that are typical later in the day. This makes me wonder: might there be a better way to manage this queue, like charging an extra $5 for a guaranteed spot in the first ten haircuts of the day? This would mean less waiting for the customers who choose to pay the extra fee, and more revenue for the salon. Since the reason for arriving so early is to avoid spending your whole afternoon in the waiting area, I think they would have quite a few takers on this offer.