Weekly confession: What is your worst beauty sin?

I've seen this on at least a couple of blogs now and I thought  it was a fun idea to adopt it to my blog as well. :) Write a comment in the comments section for this post, telling us about your own beauty sins.

So this weeks question:

What is your worst beauty sin? 

It could be anything really; overplucking your brows, too much rouge or a foundation that is far too dark for your skin maybe? Something that you do although you know it's not entirely good.

For me my worst beauty sin is definitely that I often neglect my hair when doing a look. I put so much focus on my makeup (especially the eye makeup) so I don't have time, energy or patience left to spend on my hair. This often leaves me with a very unfinished look - bold makeup combined with a sloppy, slightly tangled mini-pony-tail on my head. Haha, I bet it looks kind of weird some times. :) I'm also kind of lazy when it comes to re-dying my hair, particularly my sideburns that get color-deprived much, much faster than the rest of my purple fluff. So I usually end up with blondish sideburns and purple on the rest of my head. XD

Crazy makeup combined with "lazy" hair. 

So, now, let me hear your confessions my dear readers! :)