Halloween Costumes Requiring Minimal Pre-Halloween Preparation
Halloween is probably my favorite holiday, but I am very lazy. Below are some suggested Halloween costumes that may be helpful to those who haven't decided on a costume yet. Why not go to the party as ...

A labor union - sit on your rear all night, except for a few well-timed pickets. Yell at anyone who crosses the "picket line."
A search engine - ask people what they want to search for and give them the most relevant piece of candy you have.
Amtrak - go back and forth from the punch table to obscure corners of the room. If anyone complains, ask for more funding.
An eight-ball - memorize the responses. Answer questions.
A drunk person - you're not drinking your host dry, you're "remaining in character."

Feel free to add your suggestions below.