Dawn Blackwood is a cashier at Our Market in Oak Bluffs.

One of the biggest adjustments for essential businesses like Our Market has been limiting the number of customers they allow in the store at once.

Ms. Blackwood said some customers still try to enter the store in groups.

“We’re open from eight to six and we can only let four people in at a time,” she said. “Some of the customers would normally come in three or four times over the day and we can’t do that either. We can only let them in once per day.”