What is an item below 100 bucks that everyone should own?

https://feddit.de/post/2136244

What is an item below 100 bucks that everyone should own? - Feddit

Stud Finder.

Knocking can get it done, but the surety of knowing is a nice to have for sure.

No need for a dedicated tool, I’m right here ;)
So you mean you are a dedicated tool?
I mean, I’m not saying I’m not a tool… but I meant you definitely don’t need a stud finder when I’m right here