I am very lucky to only have to carry a few keys, but I've always hated having a random set of shrapnel in my pockets. These little key organizers are so well designed, feel so sturdy, and really bring a feeling of modernization and, dare I say, luxury, to carrying keys. Comes in a ton of different colors, materials, and textures, including several leather-free options, if that's your vibe.
I'm partial to the hybrid leather one. Get it directly from Orbitkey.