Here it was a multi-week extravaganza of visiting pumpkin patches and costume parties, but I'll sum it all up in the one post. We went to no fewer than 7 different events, so our costumes got a good workout. Work put on two separate events: one for kids and one for adults so as to separate the facepainting and candy from the slutty costumes and alcohol.
We carved two pumpkins
Work had a Halloween-style petting zoo complete with maggots eating a rotting pumpkin and tons of snakes
Cake played at the work Halloween party
We handed out a heap of candy to very cute kids in costume, who had been very well trained by their parents to only take one piece each(!) We went for a spin around the neighbourhood to see the ridiculous lengths people had gone to with decorations, including a haunted driveway horror house, a 'crashed' car with smoke pouring out of the bonnet, and all manner of inflatable skeletons, strobe lighting, graves etc.
see flickr for more photos. We won the costume competition at our parents group with our Incredible family, and had random people taking photos of us at the work party :)