When finished with "trick and treating" on Hallowe'en evening, stay up after midnight to see Mars swarmed by the stars in the Beehive Cluster.   While Mars and the Beehive cluster sneak over the eastern horizon, better viewing takes place as the hours pass and they climb higher in the sky.  

 Also, don't forget to "fall back" - set your clocks back one hour as daylight savings time ends.