What's the most useless purchase girls buy that you've seen recently?

Me: Eyeshadows. Girls buys them a lot but I think you only need two or three palette. One is for warm tone shadows and another one is a colourful palette and a small extra palette for travel.

But if you even want to minimize that you actually need only one pallette, a simple warm tone palette is enough if you don't like colourful eyes and not fond of makeup during travelling or don't travel much.