Work and Japanese banks

Worked all day. Unfortunately, I spent the money I had on me on lunch and didn't have any money to take the train home from Shinagawa. And, Unfortunately, I live in Japan where they feel that although the ATM is a computer and is still plugged in and using electricity, it's a good idea not to have any service on Sundays. I wound up walking from Shinagawa to Tamachi and the wind was blowing against me the whole way. It sucked. Japan needs to update their banking system. I don't think it has changed here since the early 80's.