We use ShipStation to manage our shipment. It works well and helps us get orders out with a lot a good information going automatically to customers.
It also compiles statistics about the orders that we’re shipping. We can see cool trends, customer breakdowns and even how quickly we ship (18% the same day, 62% the day after ordering, 10% 2 days later – mostly because of weekends). There’s a map view that shows how many orders we shipped to a particular US state. No surprise that California is #1, but it’s interesting that in the last 30 days (which includes half of the black Friday mayhem) we didn’t ship any to North Dakota, West Virginia, Vermont or Rhode Island.