I just got back from the local SMBC and saw a notification that they're ending cheap transfers to domestic non-resident accounts (国内非居住者円建送金). For those who aren't aware, this is currently a cheap way to send money from Japan to Interactive Brokers so that Americans can invest it; on February 1st it's going from 800 yen to 7,500. They claim it's to promote a more convenient and cashless society.