Just make sure your look is scary or from a horror film (don’t get us started on wearing any old fancy dress – being a cat, duh, will just about pass, but Elsa from Frozen is a no-go).

"So there was a time when people would dress up as Turks, it was seen as a lavish thing to do." But now, Royce thinks our appetite for what's acceptable fancy dress is changing. "I really think in ...