re: Employer doesn't offer retirement plan & I'm maxing out IRA. What other options

You can also use an HSA for retirement if you have one. It's like a traditional IRA, but slightly better because tax free withdrawals are allowed for medical costs.

At age 65 you can withdraw for non medical reasons but you will be taxed (like a trad. IRA).

Yearly limit is between 6 and 7 thousand if married, 3350 if singe (I think).