A second sail today and getting in and out of my slip was more - but not perfectly - successful. I used Bill's "shove her in the right direction" model to leave - very successful. And Kent's shock cord to return. I depowered very early and still had to fend off my neighbor to dock, but it was better all around. I am going to write out some of the fancy tactics above step by step and try them out.
It will be a fun party trick to be able to do this without touching anything - give me a while.
Single handed today, so I took the the shock cord another step... the world's cheapest autohelm. Worked pretty well in today's light winds but the cord has a tendency to pull the tiller up to stress-the-tiller-head altitude. Otherwise, it gave me time to move around and adjust as needed. Maybe a real Tiller Tamer is in order.