Hey, NCC. I use an aft spring line while docking. Attach it mid-ship leading aft. Once you get the other end onto a cleat or piling, you can gently motor against the spring and your stern will come in to the dock. Once you're pinned against the spring and against the dock, you can take your time getting the other lines on because the boat's not going anywhere.
A fender or, better yet, a generous rub rail helps.
With this setup, you only need to worry about getting that one line on when coming in.