Creases
I am certain that you have had slacks returned from the cleaner with a crease where there was none, without a crease when there was one, and occasionally with multiple creases. (I have even seen new slacks with double creases.)
Most drycleaners have a difficult time regulating this issue. When a pair of slacks has a hard crease, it is obvious to the staff, and the slacks are routinely returned to you with a crease. Drycleaners prefer to crease slacks because it is faster than steaming in a “soft roll” or pressing them without a crease.
When a pair of slacks is received by the cleaners with a soft crease, or it is badly wrinkled from being in a bag, the crease is not always obvious, and this is where the trouble begins. But if the cleaners do get the crease right, then they may ultimately fold it over a hanger when perhaps it should be hanging from the waist, either sideways or faced forward. It would help if the customer could make his or her preference clear.