4 Unusual Places To Stash Retirement Funds

From US News Money:

Conventional retirement accounts such as IRAs and 401(k)s aren’t your only retirement savings options. Here are four savings vehicles that offer something unique to the retirement saver.

Two of the saving vehicles should be familar to readers: reward checking accounts and I Bonds. The other two haven't been mentioned as much: Health Savings Accounts and single premium deffered annuities. The author does a good job at providing a brief overview of each.