Good: Elizabeth & James

Sure, it's incredibly affordable when you compare it to Mary Kate and Ashley's primary line, The Row. Elizabeth & James may be a cheap fix for Hollywood starlets, and still somewhat of a splurge for the rest of us, but that doesn't mean it isn't of the best diffusion lines out there. Say what you will about the Olsens, but the girls (and whoever works with them) are formidable designers, and the quality is unbeatable. I love the accessories this line offers, and I especially love when the wares go on sale (which they do, often). [Oscar Printed Silk Shorts, $285 at Net-a-porter; Metal Accented Round Plastic Sunglasses, $185 at Saks Fifth Avenue]