Can I transfer iTunes credit between accounts? How would I go about transferring iTunes credit between accounts? 

The question pretty well speaks for itself. I have two accounts, one for my iPod, one for my iPhone, I have passwords to both accounts, I can handle talking to Apple Support if that's what needs be, but I was curious if I can transfer the funds without going through customer service. Should I just "gift" myself purchases?
This totally will not work. iTunes explicitly says gift certificate balances can not be used to purchase other gift certificates. I will call apple tomorrow to find another work around.