(According to Glamour Magazine) A look back at the trends we loved, hated, laughed at and hope never to witness again. let the countdown begin. 50. Black Nail Polish Do: Everyone from Jada Pinkett Smith to Sienna Miller sported the goth-inspired look. One word: cool. 49. The Headband Do dress up with one, like Natalie Portman, but Don't pull one on to tame a head-bush. Try a haircut, dude. 48: Fedoras You Do make a chic statement with a fedora hat in neutral colors. You Don't need one that's brightly colored . . . with feathers! 47. Dresses at Night Do: Say good bye to jeans and heels as a going-out uniform. It's all about the flowy dress! But Don't wear one so mini, it looks like you forgot your pants. 46. Nipple Exposure How much do you get fined for public nudity? Trends may come and go, but a sheer bra under a sheer top is a forever-and-ever Don't. 45. Skinny Jeans Like most denim, they look best when they're simple. 44 to 40 Do: Tights with open-toe shoes. Don't: Printed, stripy tights with strappy sandals. Do: Patent leather belts. Don't: Patent leather skirts! 39. Grille Girls We Do love America Ferrera's braces in Ugly Betty. But hiding a pretty smile with blinged-out grills (clip-on tooth covers)? A Don't! 38. Jerky Tees Making fun of yourself is a Do (David Hasselhoff's Don't Hassel the Hoff) but Don't be rude! (Team Fire Crotch) 37. Spray-On Style Too-tight Don'ts were everywhere this year. Ladies, nobody sees the size tag but you, so forget the number, and buy what fits! 36 to 30 Do: Red lips Do: Red nails Don't: Vinyl-shiny lips and long, scary red nails Do: Jeans cut off at the knee as cool shorts Don't: Jeans cutt off at the butt cheek with sky-high heels Do: Celeb lingerie tricks (long live double-stick tape!) Don't: Celebrities getting out of limos without underwear! 29. Boots of All Sizes With skirts, jeans or shorts, boots were huge this year and continue to be mostly a Do! But watch those over-the-knee styles. 28. Couple Look-Alikes Says a surprisingly fashion-wise Aston Kutcher about red-carpet dressing with Demi Moore: "If she's wearing black, you just wear black. Matching is not her job. It's yours. You're the purse." That's a Do. 27 to 23 Do: Sweaterdresses over leggings Don't: Hip-length sweaters over leggings Do: Cute workout clothes Don't: Men who always work out shirtless (yes, even you, Matthew McConaughey) Do: Animal prints, just not head-to-toe 22. Belts Do: They look newest at your natural waist. Long live the hourglass figure! 21. Hot Buns! Are those sweet, pulled-back styles a Do or a Don't? Depends on the size - and where they sit. 20. Colored Tights With a dark, simple outfit, you're a Do. Otherwise, it's a superhero Don't.