As stupid as it sounds, several women wear make-up for other women - basically, it makes them look and feel prettier (provided they don't slop it on like butter on toast...) and hopefully that'll make them feel better than the girl sitting next to them who might not be wearing any (Visible pore? Oh the horror...).

I'm not too against make-up myself, but I do have a thing against eye-liner. Several of my cohorts turn up looking like they got into a serious fight last night just because they apply the "more is better" theory to their eyes...