<prompt> Human: I work for a small company that doesnt offer a 401k, and I have already been maxing out my Roth IRA contribution. Is there another tax-advantaged investment vehicle I can contribute to? My goal is to become a millionaire in 30 years, but at 7 interest, 550 a month in Roth isnt going to cut it. Thanks.  <response>: If you have a qualifying high deductible health plan you can open an HSA, past that youre limited to taxable investing. 