<prompt> Human: I have a Bank of America Regular Savings account and recently opened up a Ally Money Market account because of the higher APY I can accrue. I want to transfer a majority of my funds from my BoA savings account to my Ally money market account, roughly 20k. What would be the best way to do this, preferably without fees?  <response>: You can write yourself a check, but I recommend you link the accounts online through the Ally website. Theres a link in Ally called External Accounts or some such thing. Youll just need the BoA routing number and your account number. 