Hi,

I'm going to Japan by 2 December 2011 till 9 December 2011. Need some advise below.

Will it be very cold need some winter jacket or just normal jacket will do?

Does 2000 yen per day enough for food expenses that is included breakfast, lunch, dinner example how much does a bento cost at those convenience store?

I'm looking renting mobile phones at the Airport as i have check most of the price were quite expensive i'm looking for those cost around 250yen with included phone and line + data cost per day. Any suggestion?