Much is at stake. Boomers are retiring at a rate of 10,000 a day. In 2014, an estimated $325 billion was withdrawn from 401(k) plans as they retired. That’s projected to reach $500 billion in a few years, according to Cerulli & Associates, a Boston research firm.

Still, many haven’t thought much about what to do with the 401(k).

Washington Post provides some ideas.