I think it is safe to say that the age of the corporate pension is over. Between PBGC premiums, accounting rules, and uncertain liabilities every corporation that can cap its pension plan will do so, if they haven't already. So if you are 30 or 40, you're really on your own.
Most of the people who write to me seem to be in their 50s. There is a good reason for this. That's the age when you get really concerned about retirement. It's also the first time, for many, that tuition payments and other costs don't pre-empt most of the savings dollars. So it's also the first time that people have financial assets that amount to much. Before then, the most valuable thing in your life is your ability to work: it dwarfs everything else.
Today, we're moving rapidly to the "Free Agent Nation" that Daniel Pink described in the book by that title. That means we have to plan for our own retirement. Fortunately, there are some very nice vehicles available, such as SEP-IRA plans. These allow you to put away, tax-deferred, as much as 401(k) and 403(b) plans. And you can make the choice of which platform you use--- Vanguard, Fidelity, Schwab, TD Ameritrade, etc.--- so you can make low cost decisions about how the money is to be invested.
The next best vehicle is the home you live in. As a self-employed person you have a good deal more control over where you live and how long you live there. You should use that to advantage and make careful plans to pay down mortgage debt. Accelerated payments are a good way to use year-end bonus money when you have a good year. Also, by paying down the mortgage rapidly you can maximize the availability of low cost credit via a home equity credit line (HECL). These currently have interest rates under 5 percent, far better than most business loan rates and easily exercised. You can have a credit line up to $100,000 and the interest will be tax deductible regardless of how the funds are used. So they are great tools for financing a small business.
Some of the money that you accumulate in your SEP-IRA can be used to buy a life annuity when you finally retire so you will be in a good position to have retirement income from multiple sources: Social Security, SEP-IRA, life annuity, and the invisible income of debt-free home ownership.
Scott