This post may contain affiliate links which means that if you make a purchase through one of the links provided we may earn a small commission, at no additional cost to you. It’s spring, which means it’s time for Ulta’s Semi- Annual Sale known as 21 Days of Beauty. The sale runs for, you guessed it, 21 Days and features daily sales or beauty steals of up to 50% off of products you’ll actually want to buy from the brands you know and love. Not a bunch of random miscellaneous brands. So… if you’re a beauty lover like myself, this sale is kind of a big deal! A few months…