"Go around each shop" is correct grammar because in this sentence "shop" is being used in a general or non-specific sense. When referring to a general category or type of place, we do not use an article before the noun.
"Go around each shop" is correct grammar because in this sentence "shop" is being used in a general or non-specific sense. When referring to a general category or type of place, we do not use an article before the noun.