Oktoberfest is always a fun celebration in Addison TX. Tons of food and music and entertainment for the entire family. Yes, this started yesterday, but being a Thursday, I didn't announce it. Friday and Saturday are usually the best days to go, and even though it was free on Thursday, admission is only $5.
There are going to be many roads closed due to the high influx of traffic and such, so you might want to look at this page first to make sure you don't end up in circles trying to find your way around on closed roads.
Come early, stay late, drink some good, WARM, imported beer... be safe!