So I'm catching up on Gossip Girl (Don't judge! It's witty!) and I realize that Serena and I are wearing the same shirt! Not similar styles--the exact same model. Splendid's Light Jersey Racerback Tank in Mud
http://www.splendid.com/Light_Jersey_Racerback_Tank/pd/np/233/p/1192.html It's in Episode s3e4 "Dan de Fleurette" during the scene when Lily returns home. Serena wears it with an incredible turquoise chunk necklace, tight jeans, mega heels, and an updo. I've got mine with black cargo pants, black Ralph Lauren crocodile slides (second hand and therefore vegan), and my usual beachy, boho look (that means unbrushed and low-maintenance long hair.) Another key difference is that I bought my tank on sale at Anthropologie for $9.99 PLUS I had a 15% off coupon because it was my birthday month. Advantage: me.
(I know that I really shouldn't give a damn that I share a top with a fictitious teenager on a CW show, but, hey, this never happens to me.)