Let's talk about  necessity. You know what I mean . . . the one thing in your beauty arsenal that you feel you need and cannot live without. We all have that item and it really does vary from person to person. Believe it or not, my personal "I can't leave the house until I'm wearing it" beauty product is . . . my eyebrow pencil. I know it sounds silly, but hear me out; I get incredibly irked when my eyebrows aren't even and filled. Eyebrows truly...