The UPS Store on St. Andrews Rd. is extremely convenient with knowledgeable staff. Their mailbox service is stellar, and shipping services are always easy. They have evening pickups for UPS, which is convenient for last-minute shipments. You can also ship /drop-off USPS parcels here. The owner is also heavily involved in the Irmo community. Parking is easy and free in their private lot. I highly recommend The UPS Store on St. Andrews Rd.