Maybe it is there and I missed seeing it: Vaselene
It is multipurpose stuff.

Also, a pair of tweezers

In my own kit :
# Hot/cold compress for my knee and finger joints (the reuseabe type, you can throw it in the fridge or warm it on a tea kettle)

# Knee wrap, for my knee, just in case

Everyone of us has different health issues, but I do believe the majority of us in this forum maybe in an age group that can benefit from adding a walking cane, just in case. My knee is better these days, but I have a spare cane in the car trunk, just in case.