It’s autumn! Glorious! My favorite season. It’s a time of pensiveness, of listening to cello music, of looking forward to the joy of Christmas. And tweed! The great Martin Shaw took me to a small shop in Dublin a couple of years ago, telling me that this is where Seamus Heaney bought his tweeds. I bought the Donegal tweed jacket you see in the photo above — the kind of jacket you could never wear in Louisiana, owing to its subtropical climate — and it has become my favorite article of clothing. ...