Baseboards-by foot or by hour?

I recently installed baseboards in a couple of rooms (installed and caulked but not painted). They were on carpet, and the customer bought them and pre-painted them. I priced by the hour (150 feet took about 8 hours but that includes two transition strips too), and based on that I would say that if you are looking for pricing by the linear foot it would be $2/ft. I still prefer to charge by the hour, because it’s the corners that take the most time!