There are quite a few deals on Halloween this Friday. Most of them require you to visit dressed up in costume.
Krispy Kreme will be giving away a free donut to all visitors in costume this Friday. The deal is limited to one person per day (however if you go to your car and change into different costumes, you probably deserve another free donut). You also aren’t limited to any particular kind of donut (including the special Halloween donuts).
The offer obviously is only good for Halloween, and available all day. There are some stores not participating, so make sure to check ahead.