Being honest with you Halloween isn't as Celebrated as much in the UK as it is in the US. Christmas is the Biggest day of the year over hear. I will say I have all ways wanted to go out on a Limb on Halloween (Pun Intended ) and enjoy it like the Americans as I think its one of the biggest holidays over the other side of the Pond.
As usual I will prob be in the house at home, watching TV, Computer ECT:.
I will also add Xmas this year can go and Shovel its own ****, sooner its over and done with the better. I don't like Xmas, I don't have time for it, and IMHO, its over Commercialized, Over Rated, Expensive, and just one Day. Hurry up and do one Xmas for all I care.
Christmas is huge here as well. The US is starting into our end of the year triad of holidays... Halloween (31 Oct), Thanksgiving (third Thursday in November), and Christmas. And they are each bigger than the other in that order.
Halloween is a time of pranks and candy. Thanksgiving is a time of feasting and the day after (Black Friday) officially kicks of the holiday shopping season. And Christmas is the same everywhere.