I do a cull twice a year, end of summer, end of winter, and then keep a charity bag in the hall in between times. Today I put on a top and realised the neckline was wrong, so it’s in the bag now. I vacuum pack things I don’t need between seasons and store them on top of the wardrobe - heavy knitwear, summer frocks etc.
I think Marie Kondo works to a point, but you need to remember that some items never really spark joy, but are useful, flattering workhorses. Example from my wardrobe:
A-line, just above the knee leopard print skirt, bought about three years ago from Oasis - total joy sparked
Black crew neck jumper from Whistles - boring
Black skinny rib M&S polo neck - boring, boring, boring
Neither of the tops spark any joy, but the skirt needs them (separately) as a canvas to shine.
(Quite looking forward to autumn and getting that skirt out, tbh.)