No matter what type of budget you're on, there are plenty of free, downloadable, print-at-home Halloween bingo cards that can entertain your kids for the entire month of October if you want (although, that is a lot of bingo). This is one activity that is fun, mentally stimulating, creative, and doesn't even involve Halloween candy. But it's still a good idea to have fun, new ideas in your back pocket for little ones. They've experienced the trick-or-treating, the Halloween parties, and the couples' costumes.
By the time most adults are old enough to have kids of their own, they've usually enjoyed every Halloween activity there is.