Vanessa Hudgens Stand Up 2 Cancer Auction
Michael Kovac/WireImage

Though Vanessa Hudgens is consistently glam on the red carpet, even her favorite looks get relegated to the back of the closet.

“I go to a bunch of events,” she tells PEOPLE. “Normally when I wear a dress, I only wear it once.”

Taking advantage of this stylish surplus, the actress is auctioning off the one-of-kind Candie’s Couture gown she wore to last year’s MTV Movie Awards (left), with all proceeds benefiting Stand Up 2 Cancer.

“I’m just trying to raise awareness,” she says of the endeavor, which starts Monday, Jan. 23 at 7 p.m. EST/ 4 p.m. PST. “It’s exciting.”

Other things she’s excited about include her new website, VanessaHudgensOfficial, where she blogs about film and music — and posts personal photos, thanks to the iPhone app Instagram. “It’s slightly addicting,” she says, laughing. “You can take a picture of a cup and it will look incredible.”

When it comes to looking good on days off, she relies on a fail-proof ensemble: “A funky long dress with a bunch of bracelets and a bunch of necklaces and a cool floppy hat.”

And while she and pal Ashley Tisdale often buy the same things — “It’s always been like that,” she shares — Hudgens relies on personal flair to avoid identical outfits. ”It’s all about accessorizing,” she says. “As long as you accessorize, you can make anything yours.”

Head over to eBay right now to make Vanessa’s sexy silver column yours!

Justine Harman

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