Rachel Zoe recently became a celebrity adviser for social travel planning website Trippy, and we caught up with the stylist to get the inside scoop on her new jet-setting gig. "It connects people in the way of travel," Zoe said of the site. "You can post about things to see and do. If a friend wants to go somewhere I've been, they’re going to see my recommendations." With loads of stamps in her passport, Zoe has perfected her travel routine. Click through the gallery for her ultimate globe-trotting tips, including advice on traveling with a baby, over-packing versus under-packing (can you guess which side she's on?), and which items you should never check!