What’s Your Most Underrated Prep Item?

[AquaFern1028]

Noticed I always reach for my can opener and extra sewing needles, but rarely see those on main lists. What’s the one low-key item you’ve packed away that you’d never want to go without? Curious what folks would miss most if supply chains went down.

 

[TeaTimeTalisman]

Can’t go without petroleum jelly—uses for first aid, waterproofing, even starting fires. Anyone else stash old-fashioned remedies like that, or am I the only one clinging to grandma’s tricks?