An idle comment on Twitter led me to start boning up on the Appalachian Trail, and within five minutes I was absolutely hooked on the idea of doing it. Six months on a wilderness trail! Snow! Bears! The whole notion of trails of this kind is wonderful, too.
Before I commit to anything rash, my friends have convinced me to read Bill Bryson’s book, A Walk in the Woods. I’m only a couple of dozen pages in, but it’s redolent of A Short Walk in the Hindu Kush in some ways – I’m enjoying it.