Constance Billard was the school we all wish we went to. The highlight of our Monday nights is watching Upper East Siders Blair Waldorf and Serena van der Woodsen deal with the typical teen issues — scoring high on the SATs, wearing haute couture, and avoiding roofie-laden drinks. Oh, and then there's navigating teenage life around the anonymous bitchy blogger who texts out everyone's business. Even with all of this drama, the hot Upper East Side guys and fab high society events more than make up for the constant ridiculousness. Now going into it's fifth season (they're in college now!), we'll pour one out for chic school uniforms, Chuck's cravats, and Blair's headbands.