I saw this today which was interesting:
Open a Bank Account With a Credit Card
I saw this trick mentioned in regards to the HFCU 6% CD deal, but was too chicken to try this. Did NOT want to get stuck with a cash advance fee. It was the first time I had ever heard of opening a bank account with a credit card charge.
This post gets further into which banks accept credit cards to open accounts, and how most do not classify these as cash advances. But, if you are still a little wary, you can ask your credit card holder to set your cash advance limit to $0. So basically the transaction won't go through if it is considered a cash advance.
We have enough medical bills that I doubt we will ever do this (not scrounging for ideas to charge up credit cards). BUT, if I saw this article first, I would have opened up my last bank account with a credit card. At the least, it would have been worth $40 cash back to do so.