If you're healthy enough to swing a high-deductible health plan, consider maxing out a "stealth IRA" aka health savings account. With a $3,350 individual / $6,750 contribution limit, it's a great tax-advantaged account that can be treated just like a Traditional IRA. If you use it for medical costs, which you are likely to have in retirement, you get tax advantage on both ends.
http://whitecoatinvestor.com/retirement-accounts/the-stealth...