Well I've only hosted 2 parties and neither of them had a theme. I not sure if I want to theme my party this year though. However, if I come across an interesting and fun theme I just might host my first themed Halloween party! So far there are a lot of great ideas in this thread such as the "Face Your Fears."

Yellow_Moon... I too am blown away by your creativity! This gives me ideas for my party this year, especially since I just found out that just a few streets away is home to a ghost of a woman who was killed in the 1980s while riding her bike at night. Legend has it that she appears after midnight. Hmm... now its time to get to thinking!