A Plan

This is all very contingent, and especially contingent on me bouncing back relatively quickly from jet lag (I've had bad experiences, and I've had experiences of falling down dead for a four-hour nap in the middle of the day and then being fine. We'll see.) And none of it needs to happen on a specific day except the Ghibli museum, because I've got tickets for that.

-Ueno Park at daybreak, if my jetlag wakes me up early, as I expect -- my hotel is right by there.
-Tomioka silk filature, followed by onsen in Maebashi.
-The hike in Kamakura to the large Buddha, possibly followed by wandering around Kamakura.
-Takarazuka, if I can manage to get tickets; the Tokyo one more likely than the Osaka one.
-Ghibli museum
-Wandering around the shitamachi areas of Tokyo, especially the used bookstores around Ochanomizu
-Wandering around Shinjuku, Harajuku, Ikebukuro, Shibuya, hoping to see the crowds of fashionable people around Harajuku on Sunday, and also eating crepes.

I want this to be a vacation and not a forced march of tourism, so I'm prepared to cancel any of those in favor of lying in bed watching the Japanese "Who Wants To Be A Millionaire" if I get tired or stressy. (Except going to Tomioka, since I am ostensibly going for research purposes.)