The data heads at Zillow have taken a break from churning out serious research briefs and Real Estate Market Reports to rank the 20 best cities to trick or treat this Halloween.

FORBES: 2011 Trick-or-Treating Hot Spots

We still had trick or treat but had to eschew our normal route.

FORBES: 10 (er, 11) Uses For Leftover Halloween Candy

In fact, any firm that tried to disguise a dividend as a buyback would quickly learn that America's taxmen are on to the trick, and would treat such gains from buybacks as income.

ECONOMIST: Corporate finance

Now is your chance to play trick-or-treat.

FORBES: What Costume Is Your CMO Wearing for Halloween?

Now in its third year, the Zillow Trick-or-Treat Index is designed to help kids (and parents) use data to identify cities that will boost their Halloween haul.

FORBES: 2011 Trick-or-Treating Hot Spots

As I was preparing for the onslaught of little costumed munchkins to arrive at our office today for our annual family trick-or-treat, I reflected on the diverse array of CMOs I met this year.

FORBES: What Costume Is Your CMO Wearing for Halloween?

In 1950 when Trick-or-Treat for UNICEF began, kids simply decorated old milk cartons to collect change.

CNN: How UNICEF became a Halloween treat