The holiday season is literally synonymous with parties, reunion dinners, and dozens of family photos to pose for... and it's just around the corner! If you haven't gotten around to losing those last few pounds yet, don't panic. These easy dress-thinner tips will have you looking long, lean and lovely quicker than you can say "jingle bells"!

Embrace shapewear

Shaping undergarments (such as Spanx Power Panties Shapewear) are a heavensend for eliminating bulges, especially if you're rocking a slinky or body-conscious number. And it doesn't matter whether you're a size 2 or 20 -- everyone can use a little help when it comes to getting your clothes fit smoothly. There's a shapewear solution for you whatever your problem area -- be it the tummy, thighs or tush, or you want a nicer profile all over.

Pair with matching pointed-toe platform heels

Legs look leanest when paired with heels that have a tapered toe and high stiletto. Get them in a hue that matches your legs to extend the silhouette of your pins -- go for nude-toned heels to visually elongate your legs; if you're wearing black opaque tights, team them with matching black pumps.

Stick with one color

This classic slimming trick is also one of the most effective: A monochromatic ensemble creates a clean vertical line, so you look thinner and taller. There's no need to stick to black, just make sure you pick the same color for your top and bottom.

Flaunt a little skin on top

Go for a top or dress with a V-neckline -- it not only adds just the right dose of sexy to your look, it's also ultra-flattering for almost every body shape, drawing the eye away from your midsection and hips and creating the illusion of a long, elegant neck and slimmer upper body.

Get a spray tan

A faux tan is like an instant blemish eraser, camouflaging veins, cellulite, stretch marks and other imperfections. Plus the golden glow makes your gams appear slimmer and more toned.

Pick "slimming" fabrics

Soft, drapey materials such as jersey, cashmere, fine cotton, silk, and spandex mix actually help slenderize and shape. Go for a simple style for the most streamlined silhouette -- steer clear of excessive embellishments that give the illusion of bulk.

Wear your hair up

Pull your tresses up into a ponytail or updo and tease to add height at the crown -- it instantly slims down your face.