I received an email from delta a few days ago offering me 50,000 frequent flier miles for transferring $100,000 to Fidelity. The fine print reads that this has to be a non-retirement account and has to stay at Fidelity for at least 6 months, but if you've got investments (stocks, bonds, etc) elsewhere you can transfer them to fidelity and then transfer them back 6 months later.
Not a bad return for very little work.
Not a bad return for very little work.