Have a 20-yr military retirement under the old final pay system, couple of 401Ks with 10% matching contributions from post-Army employers, an old IRA from the 80s, some money market accounts, and social security - so, excepting a total economic collapse, I should be fine.
I actually retired earlier than I had originally planned (at 55), but thats not a bad thing. Been doing fine on my military retirement pay and the money market account. Turning 60 this month so can start getting into the tax deferred 401Ks and IRA as needed, and will look at starting SS after I draw down the 401Ks some. Will use some of the 401Ks money to pay off my mortgage this winter.
