I went to used English book store ,"Good day books" in Ebisu.  

http://www.gooddaybooks.com/contents/home/index_html?language=english

( But I bought new one・・・）

On my way home,I bought "Dorayaki"  and Green tea leaves as a gift for my parent.

I'm going to go home tommorow.

Shop Info 

CHATO　

http://www.chato-plus.com/hpgen/HPB/entries/16.html

Atre Ebisu 3F

(Atre is directly connected to the JR Ebisu station)

1-5-5 Ebisu Minami

Shibuyaku Tokyo

Mooncake ”Geppei”, Yokohama China Town

Mooncake is Chinese traditional sweets. I bought it  "Kaseiro" at Yokohama China Town.

I think it is good for souvenir or Hospitality gift

Shop URL (Sorry, It's only Japanese)

http://www.kaseiro.co.jp/shop/meika.html

Shop Info

As of October 26 2008, 

New Annex Store at China Town Open

Sunday to Friday at 10:00 to 21:30, Saturday at 10:00 to 22:00

TEL.045-641-7890

Yamashita-cho 164

Naka-ku Yokohama-city, 

Kanagawa prefecture JAPAN

231-0023

Access

If you  take a train from Tokyo, I recommend 

Shibuya Station (Tokyu-Toyoko Line) to Momotomachi-Chukagai Station(Minatomirai Line).

How to way to station to station

http://world.jorudan.co.jp/norikae/cgi-bin/engkeyin.cgi

See big picture

Sample root: