With the advent of the Internet and e-commerce, it's now possible to be a complete hermit and still shop 'til you drop (your mouse, that is).

CNN: Best free stuff online: Catering to consumers

Kotlikoff is a professor of economics at Boston University, president of Economic Security Planning, author of Jimmy Stewart Is Dead--Ending the World's Ongoing Financial Plague With Limited Purpose Banking, and co-author, with Scott Burns, of Spend 'Til the End.

FORBES: Economics-Based Planning