Spanx Ponte Micro Flare Pant $27

These smoothing pull-on Ponte Micro Flare Black Pants drop from $158 to $39 to $27.30 at Spanx when you add them to your cart. You'd spend over $100 at other stores for these, or at least $59 for a different brand but comparable option. These feature built-in core shaping and light compression for a smoothing effect. Even better, they ship for free.