Another EDC item I always have with me:

A handkerchief

Why?

Other than the obvious, having a clean piece of cloth in your pocket is really useful.

• I can clean my hands with it after tinkering with my bike
• I can use it to pull a thorny weed I spotted in the yard
• It’s useful when there’s been a small spill
• You can clean a grubby phone or laptop screen (or child) with it
• You can handle something hot for a short period of time

There’s a great article on the value of a handkerchief here which encouraged me to ensure I always had plenty on hand:

https://www.artofmanliness.com/style/accessories/every-man-should-carry-a-handkerchief/