Every year when the holiday parties roll around, there is one thing on my mind immediately: What to wear?

As usual, when I walk into room, I see the usual sea of women dressed in the black-pants-red-blouse  ensemble.  And, even if they pull it off without looking matronly, I have always vowed never to be that girl.  Thanks to DenimBlog’s friends over at Bluefly, eLuxury and Revolve Clothing, I’ve put together a few ideas to cover most of our bases this year.  Best of all, everything is on sale!  Get it while you can…

For an office party look, why not wear this amazing Earnest Sewn “Olivia” High Waisted & Waxed Black Denim Skirt as your main look?  Here are some ideas to pair it with, like a fabulous Alexander Wang Top and a Christian Louboutin Pump:

Clockwise from top right: Autumn Cashmere Black Cocoon Sweater; Hayden-Hartnett Toyko Clutch Purse; Jardin 3-Carat CZ Stud Earrings; Earnest Sewn “Olivia” High Waisted Denim Skirt; Christian Louboutin Bordeaux “My T-Strap” Pumps; Alexander Wang Embossed Silk Top - all at BlueFly.com

Need the perfect jean for your Dressed up Holiday Sit Down Dinners and for those dessert laden meals?  Definitely check out the Genetic Denim “Carb Stretch” Slim Skinny jean for a simple and chic look.  Paired with just the right items, like this Cole Haan Clutch, no one will notice if you sneak an extra ginger snap!

Clockwise from top right: Cole Haan Keaton Clutch*, 3.1 Phillip Lim Scarf/Shaw^l, Me&Ro Engraved Hoop Earrings^, Bing Bang Gold Faceted Ring+; Genetic Denim Carb Stretch Skinny jeans*, Dolce & Gabbana Strappy Sandals^, 12th Street by Cynthia Vincent Berry Chiffon Top*. Key: * = Bluefly, ^ = eLuxury, + = RevolveClothing.

And, lastly, celebrate your New Year’s Eve Party looking your best.  Pretty much every girl I know loves wearing Rich and Skinny–the Bellissima Jean is a nice way to doll yourself up as you ring in 2009.  Plus, it looks amazing with just about anything, including these Miu Miu Heels and this Proenza Schouler Top.

Clockwise from top right: Gorjana Dusk Tear Earrings+; Miu Miu Jeweled Heel Sandals*; Lee Angle Beaded Silver 7-Strand Bracelet*; Rich & Skinny Bellissima Jean in Black+; Maison Martin Margiela Chain Mail Wristlet^; Proenza Schouler Satin Signtura Bustier Camisole^-*Bluefly.com, ^eluxury.com, +revolveclothing.com

What do you think?  What are you going to be wearing to your favorite holiday events this year?  Are you making denim the centerpiece?