The United City of Yorkville's official trick-or-treating hours are from 4 to 7 p.m. Monday.

And as a quick reminder: Parents, you can upload photographs of your children age 12 and younger in costume to Patch as part of a national contest.

The Grand Prize? Patch will whisk the winner to New York or Los Angeles for a two day, three night trip for two that includes a meet and greet with Heidi, plus a donation of $1031 to a local charity of the winner's choice. Nine runners up will also get a $1031 donation from Patch to a local charity of their choice.

For more details on the contest or to enter, see this post.