A side note of additional methods and tools from EDC Keys that we've uncovered during my long hunt for the perfect system.
Best Key Organizer, Key Holder & Keychain Multi-Tool
KeySmart Original Carbon Fiber 3K Compact Key Holder at Swiss Knife Shop
My KeyBars! Man I love these things! : r/EDC
Keys are probably the most important and most used items in your EDC : r/EDC
Lot of 13 Useful Keychains Tools Gadgets Pill Cutter Glasses Screwdriver Cleaner
Sold At Auction: An 18 Karat Gold Ring In The Shape Of A, 43% OFF
Utility, EDC Keys Additional Key Carry Gadgets
MICRO - World's Smallest EDC Key Organizer EVER
Hidden Handcuff Key, Urban Survival Kit
HEAVY DUTY UTILITY: Made from copper and high quality rust-free stainless steel hardware, the American Made, ergonomic KeyBar design won't add any
Keybar Copper Key Organizer EDC Tool | Everyday Carry Compact Key Holder Multi-Tool and Keychain Organizer with Pocket Clip (Holds up to 12 Keys) Made
KeySmart Compact Minimalist Pocket-Sized Key Holder and Key Organizer, EDC Key Carrier w Key Ring Loop Piece for Car Key Fob Keychain Accessories 14 Keys Red