Visited the Tsukiji market yesterday, the ghibli museum, and had an evening stroll in Akihabara. (The crowd lining up for Nanoha 1st's Nov 26th BD release - dunno why it was selling today, reminded me of just how much catch-up I have to do. Surprisingly, I'm in no hurry to do so.)
Fish market was a pretty nice place to do something different, and have chance to eat fresh sushi and sashimi. While my tongue can taste the difference between fair and bad sushi, I think I have some difficulty appreciating excellent sushi to the max - a little bit of it is lost on me, but it was still very good.
Ghibli was pretty cool. They had exclusive short films airing and each person was only allowed to watch ONE once.
I only had a quick look at Akihabara, but I can't really do it comfortably with 4 other people. I think tomorrow I can have the day off until dinner (at the very least, half a day off), and I plan on going back there to freestyle around the place. Don't expect dirt cheap electronics or anything, since tourism changed just about everything, You'll really need to make time to explore so you can bump into those ones that are of interest.