Worst than misplacing,  "where did it go". 
I'll be out installing and doing something on the ground (blanket).  
Change bits in my drill,
go to change back, and the 1st one I was using is gone.  I haven't been anywhere.....
Where did it go???
I usually find it and realize I set it there so I wouldn't lose it...   lol

Glasses are the next,  I usually have them strapped around my neck when working,  but the straps don't last,  
I need some better straps if anybody has a recommendation?

Figuring out how to do something you have never done is what makes a good challenge.