It seems like the world of fashion is moving faster and faster. Trends come and go in the time it takes to post your outfit on instagram. Retailers like H&M and Forever 21 are cashing in on this in a big way, driving demand by constantly restocking their stores with new and insanely cheap merchandise. People think nothing of picking up a trendy top for $10, especially since that trend may be over before you even get the tags off. But what if our habit of buying cheap is costing us big?