Here's how I plan on "using" my remaining 15 knives:

(2) Wardens = His & Hers EDC Pocket Carry / Small PSK
(2) 411 = His & Hers Camp Chore/Farm Chore Use
(2) S5LE = His & Hers GHB
(1) Tank Buster = Safe Queen
(1) ASH-1 (.22) = His User
(1) ASH-1 (.187) = Her User
(1) SJTAC ETS = His User
(1) SJTAC SF-1 MO = Safe Queen
(2) NMSFNO = His User & Safe Queen
(2) NMFSH = His User & Safe Queen

At this point, only one of the above knives has been used. Every other knife is brand new.