I saw stacks of blu-ray blank media on sale.
I saw a blu-ray camcorder.
I saw and bought a tiny tiny laptop which is awesome.
I saw and used many Gachopon machines.
I saw the Tokyo Anime Center, which was mostly a gift shop but pretty cool anyway; had my picture taken with a nice life size statue of Rei from Evangelion.
Ate some great sushi. Yesterday I ate great sushi as well and now I am evil - for I ate whale sushi. Please post the necessary curses in the comments section.
And I saw an amazing Temple.