Some retail grocers are limiting the number of customers allowed in their stores and marking aisles with arrows to add separation to customers.

Since Saturday, Wal-Mart is letting only five customers – per 1,000 square feet – in at a given time. Shoppers are being let in one by one and Wal-Mart employees are counting the number of customers in the store.

Reasor’s Grocery marked aisles for one-way traffic and put mandatory spacing in check-out lines. Self-checkout has been halted at stores and some grocers are designating special times for older shoppers (60 and older) and people with medical situations.

Target is having employees wear masks and has designated one-way aisles. Home Depot is allowing only 100 customers in the stores at one time. Others must wait in a line outside. Costco will only let two people enter with each membership card. Lowe’s is monitoring foot traffic. Oklahoma City-based Hobby Lobby has temporarily closed all of its stores.