October is a difficult time for supermarkets. They have to juggle Halloween, fireworks, Xmas, Diwali and Hannukah.
— Mark Wadsworth (@Mark_Wadsworth) October 26, 2015
Very true.
They are all rather similar (except Christmas) as this table points out
FestivalFestival of Light?Fireworks?Sweet things?Savoury things?Costumes?
HalloweenYesNoYesNoYes
DiwaliYesYesYesNoNo
HannukahYesNoYesYesNo
Guy FawkesNoYesNoYesNo
But everyone has different sweets and savouries so it is a bit of a pain