My husband is gonna go dressed in a straight jacket and I am gonna go dressed as a nurse! LOL
I have my jail costume the sheriff gave me
I'm dressing up as a scary old lady .. And I'm not even going to a party.
You could dress up as a hoovooloo (a hyperintelligent shade of blue from The Hitchhikers Guide to the Galaxy). I'm not doing anything for Halloween this year, but I'll dress up as a witch or something for the trick-or-treaters that come around.
Get a cheap hoodie and a couple of bags of cotton balls. Use some white and pink felt to make ears and glue them on the hood. Glue the cotton balls on the rest of the hoodie and go as a lamb.
I saw one last night that I thought was very clever and its inexpensive and easy...just take a white t-shirt and write on it with a black sharpie " ERROR 404: COSTUME NOT FOUND" bam ! Genius :)