@John Warren Yes.... I would make an appropriate reduction right away. That will get you closer to the right price point and it will trigger your listing to hit you local MLS "hot sheet" (assuming you have it listed with an agent) and it will also refresh on Zillow and the other online sites. I've sold houses within a few days of both Thanksgiving and Christmas so I wouldn't wait until after the holidays to get your price in line.
Respectfully, I don't agree with Jd's position. People set maximum purchase amounts on their searches (and can be pre-qualified for any amount) so if you drop your price to a point that falls within their criteria, they will likely take a look at your house. The bottom line is that exposure to agents and the general public is what sells houses. No one will look at every house in their price range so a good strategy is to keep getting your house in front of the public as much as possible. If your house is one of the five that they look at, you've got a decent shot at getting it sold (if your price is right).