First of all if you actually knew me, you would know that there would be no way I would go to a party lasting longer than 5 hours, let alone be stranded at a lifelong party or some deserted island.
And if I ever went to any parties, I would only be carrying one of those little, impractical bags, such as my current favourite -the LV Monogram Vernis Lexington (in Perle.) Inside it would be my usuals: Clean & Clear oil-absorbing paper, pocket mirror, mints, mini pen, mini bottle of deo, hair tie, lip balm, DiorKiss lip gloss in Rose Guimauve/ Pink Marshmellow, Shu Uemura liquid eyeliner, mobile phone, ID card, lots of cash, credit card, and sometimes, iPod Nano.
Outfit-wise, I'm usually in black pants, a pretty top and trusty blazer (my recent fav is a dark purple one by Indivi, sort of like the one in the picture above). And if I'm bothered, maybe a pair of earrings or a necklace.
And umm, what else can't I live without... to be honest, there's not really any fashion item that I can't live without. What I like changes all the time (which is prob what defines part of fashion), so the only thing I can't live without is probably money. Yikes, I need to go finish off my essay and get packing for Spain now!