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

it wouldn't be weird if nobody else had any underwear either

I was gonna say the same, but with all the answers of "bidet", maybe it's not necessary?

I feel like not having any underwear may be outside of the norm but I don't think it's super weird. Maybe just regular weird.

I don't have any underpants, just one or two pairs of jammie shorts