And the joy/pure misery of coming up with ideas is only doubled when you decide to go as a pair.
Well, fear not! Twitter has kindly come up with a complete list of bizarre and meme-worthy costume ideas for couples.
Admittedly some may be more conceptual than realistic but hey, what do you want from me? I’m trying my best. Back off!
We’ve picked out the best of the bunch below.
Angel and a grapefruit
Horny Ted Cruz and his porn viewing habits
Jennifer Lawrence in 'Mother!' and her sink
Jezza and the future
One for all the lads to do together
Real Melania and Imposter Melania
Scared Trump and an eagle
Tyra Banks and Tiffany Richardson from 'America's Next Top Model'
Coco Montrese and Alyssa Edwards from 'RuPaul's Drag Race'
Harvey Weinstein and a place he'll probably never have to go
Kendall Jenner and a can of Pepsi
The Hormone Monsters from 'Big Mouth' on Netflix
Donna from 'Parks and Rec' and her child (aka her Mercedes)
Jason Biggs and a pie
Rihanna and a glass of wine
George W. Bush and the International Criminal Court
And finally one for the whole family: The Irish clan trying to catch a bat