Retail lighting is designed to make merchandise look good, and it does the same favor for dust on a shelf lip, a smear on a fixture and a gray stripe worn down the main aisle. A shopper reads all of that in about four seconds, well before they read a price tag, and it lands on the store rather than on the cleaning schedule.
Cleaning a store evenly wastes money and still looks wrong. Entrances, main aisles, fitting rooms, checkout and restrooms absorb nearly all the traffic and nearly all the judgment, so they carry the frequency. Stockrooms, back corners and low-traffic departments run lighter and get caught properly during periodic detail work instead.
Local dispatch from 26 E Superior St, Unit 4 matters most in retail during a Duluth winter, when a thaw and refreeze cycle turns an entrance into the dirtiest square footage in the building overnight. Cadence usually tightens from November through April and eases back once the salt stops coming through the door.