What’s Everyone’s Most Overlooked Prep Item?

[CeruleanScribe]

Everyone talks about food and water, but I rarely see mention of manual can openers—what happens if your electric one fails? What’s the most overlooked item in your setups, the thing that’s easy to forget until you desperately need it?

 

[MeadowWhisperer]

Spare reading glasses—can’t count how many times I’ve misplaced mine. Pretty useless in a crisis if you can’t read instructions or labels, right? Anyone else keep backups around?