below is a draft of my itinenary
going on march 2015 for 10 days

day1 arrival
day2 osaka castle, kaiyukan aquarium, dotonbori
day3 USJ, namba
day4 kinkakuji, arashiyama, nishiki market
day5 fushimi inari, kiyomizudera
day6 travel to tokyo, sensoji, ueno park
day7 hakone
day8 disneysea
day9 tsukiji market, tokyo tower, odaiba city
day10 meiji jingu, hachiko statue
day 11 depart

does it look too rush?
or any places i miss out?
thanks 

nice one lowyatter....especially the 2nd pic.
the river looks crystal clear :0

Ya was good. Will upload some photos when I. Free, now back to work.

Anyway the most frustrating part. As I don't use credit card, I made quite a few transaction with my maybank ATM/debit card. I guess they are not familiar with it, they slot the card and it doesn't work, need to use the IC chip and voila, it works.

Now comes the nightmare, maybank said usually the transaction goes like this, there will be a preauth transaction deducting the amount, then refund back the amount, and another sales debit amount which goes. Deduct, refund, deduct.

But all my transaction don't get refunded so every transaction got deducted twice from my account. Have to make a dispute and wait for then to refund, which takes 2-4 weeks.

Im arriving haneda airport 10.50pm . Booked a hotel which is at nihombashi.
Should i cancel the first night and get a hotel nearby airport instead?

Thanks, will check them out.. OTS seem to be available only in Hokkaido and Okinawa. Surveying Nippon

Yes, I was looking at Nissan because they got branch very close to Toyama station. But I feel like I have to call them to book properly. Is online booking sufficient for Nissan?

i booked via tocoo oso... and the other one is ots

remember most of the online car rental is available in japanese only
the most preferably way to book is via email... and telephone call to confirm
ohh warning they have limited english capability, especially speaking

i done mostly via phone, coz i can call to 10 countrys for free