Charge your phone with green energy
Now you know where to connect to the internet, but what if your phone runs out of battery after you snap endless selfies (especially at these top ten Instagram spots)? With City Charge, you can top up your battery life for free at the solar-powered stations set up near the foot of Tokyo Tower. Each station generates enough power to charge up to 60 phones per day (15 minutes per charge).
Alternatively, you can camp out at practically any chain café or fast-food restaurant, as most of these offer free use of electrical outlets to all customers. Some will even lend you a charger for free – the most service-oriented places have a diverse collection of chargers, so you're almost sure to find one that works with your device.