Remember freshman year? CollegeMagazine.com asked students nationwide to give one juicy piece of advice to the incoming class of 2015. Their advice was honest, helpful and even a little hilarious. CollegeMagazine.com then turned 99 of the quotes into postcards and a video. Click through our slideshow to see their top 10 freshman tips. And for a chance to have your own postcard, tweet your advice to @CollegeMag #WishIHadKnown.