SUMMARY: Cheap URLs. (Like cheap thrills, only more acronymic.)
I finally did it--registered the tajmutthall.org domain name.
You can continue to point to finchester.org/dogs/dog_diary/, as that's where it'll probably stay forever, but now you don't have to remember that when you're out on the road and desperate for your Taj MuttHall fix! Just go to tajmutthall.org, and Bingo, there you are.