After we go to the Sega arcade over the road to have another go on the Guitar Hero-style drumming game we played the other day, and find a new fun game where you have to build with real lego-type bricks in front of the screen to make the characters move. Find a nice washi paper shop on the way back and buy a few gifts, then pop into yet another branch of Loft (in the Seibu mall above the station) for more cute stickers and stationery.
Back in Shinjuku the rain has let up a little so we go to find the fabric store Okadaya, behind the train station. It has a great selection of cute fabrics for reasonable prices; I get 3 metres of various patterned fabrics for about 15 quid. Go back to the hotel briefly to dry off, but it's raining hard again when we set out for dinner. Try but fail to find a gyoza (dumpling) place recommended online so settle for an average but overpriced Chinese place in the Isetan mall. Console myself with Pocky from the 7-11 on the way back and spend the evening planning the next few days - halfway through our time in Tokyo now.