As a teacher I use to misplace my keys for my room. Did I leave them in my coat? My khakis? Are they in my desk? Did someone steal them? I did the same thing for my I.D. badge. My solution to the problem, once I learned to knot paracord, was to create a neck and key lanyards. Both lanyards are made with 7 strand 550 black paracord and with a cobra weave. A cobra weave is a two layer square knot.
I used the following links to help make these two projects: