I've seen just one Guy in Cardiff outside a Lidl supermarket. But the shops are swamped with stuff for Hallowe'en, which seems to have become a catch-all horror-vampire-zombie-ghost-etc festival rather than the single night it once was.

On Guy Fawkes, I remember vaguely from my school history that Nov 5 wasn't initially celebrated until many years later when Parliament or the King decided the natives were getting restless and needed a revival of the autumn fire festival of yore what had been banned by Cromwell.