There's no point carefully applying layers of eyeshadow if it's all going to be wiped off as soon as you've left the house. Or, if you're opting for a vibrant look, you don't want to waste all of that precious time if you can't see each of the colours to their full potential.
If you've all but given up when it comes to applying brighter eyeshadows after repeated episodes of smudged or creased eyes, it might be time to invest in one of the best eyeshadow primers.