Wow, old bloggers CAN learn new tricks. I've been thinking about changing the design of my two blogs for quite a while, but wrongly thought this would be difficult.
It wasn't. Just took a bit of clicking around today.
I'm trying out a "responsive" TypePad style that is mobile friendly. I also deleted some extraneous stuff in the sidebar. To me the look and feel is considerably cleaner and more modern now.
And I've heard that the Great God Google has taken to rewarding web sites that are mobile friendly in his/her/its search results. So... another benefit.