A smaller and therefore extremely busy post office in the Park Road Shopping Center. It's by the "top" end of the strip, next to the Harris Teeter.
Every time I've been in here, the staff was always super friendly and very helpful but there just aren't enough of them. At busier times (Christmas, Mondays and Fridays at lunch time), I've waited as long as a half hour.
Lots of post office boxes and there's an automated machine for weighing packages and buying stamps, but it only accepts cards with a $1 minimum. No cash.