If your asking about small operators and sideliners, then the answer would likely be along the use of deeps in the brood chamber. Don't let the collection of internet bee junkies that hang out here fool you by the amount of chatter. 95% of ALL beekeepers still use deeps (or at least one) in the brood chamber.
Some large operations, that are in the tens of thousands of hives, keep nothing but all deeps, for both brood and honey. (Imagine throwing deeps full of honey around all day..
I'll let "commercial honey producer" MB, speak for himself as one of the main honey producers out there.....