I have a plastic box (hammererbox ™ )that cost £150 (ok it was about a fiver from Ikea or somewhere equally cheap, that i stick all my winter gear in once the clocks go forward (yes i used to freeze some years!) I also have a swim mesh bag with all the swim bits in and a swim ruck sack that has jammers and towel in plus my tow float and wetsuit folded nicely. There’s a box of cables for charging various bits. I have a sports drawer which is a mess of old race t-shirts and cycling shorts that are now see through that I still wear on Zwift. I also have a load of race nutrition in a cupboard that is likely out of date now its been so long Running shoes go in the shoe cupboard.
Our house is aggressively lived in to coin @GRamsay’s phrase.
Bikes are either in the bike shed (Asgard thingy) two hanging in the office, a couple of the kids ones in a Keter shed and more under a tarp round the back of the house.
Helmets on a shelf near the bikes, shoes on the floor under the shelf and pump next to that.
Clothing is another matter entirely, my bike stuff is shoved at the bottom of the wardrobe and run stuff on a shelf. No order to it as I’ll only have to drag it all out to get the right combo of long/short/warm/rain stuff.