OK, so if there's one skill every woman should know, it's how to apply foundation properly! Even if you only wear foundation on the rarest of occasions, it pays to know how to do it the right way. After all, unfortunate-looking snafus like awkward jawlines and mismatched shades are all too common. Watch this fun tutorial video from our friends over at Birchbox to learn how to avoid the common application pitfalls. If you're wondering what Deepica uses to create her flawless base, she's rocking the Radiant Skin Creamy Concealer by BECCA, as well as the brand's Radiant Skin Satin Finish Foundation. Let us know in the comments what your other top beauty blunders are and we'll worl to bring you a few fabulous solutions!