I knew from reading older posts in this forum that Scotland is very popular in the summer and lodging on the islands is tight. However, I had to figure out how much time I wanted to spend in Edinburgh and Glasgow before I could pin down my island timing. I am here to warn that December 15, 2018, is too late to look for island lodgings for July 2019 if you need a place with good bus service, though things will be just a bit easier for folks looking for double rooms rather than twins.
I will continue to prospect in hopes of improving on some of the choices I have been forced to make. At this point I'm in Oban rather than Tobermory (Mull). I was incredibly lucky to find something in Portree (Skye) last night.
Yes, I know; it would be a lot easier with a car. Can't do it.