Rachel Bilson's Must Haves: From a Flavored Lip Balm to a Jalapeño Tequila

While Bilson says she's a self-proclaimed "backpack hoarder," she does have a special affinity for this Patagonia Black Hole Duffel Bag ($159). "I do have one travel bag that never fails me: The Patagonia Black Hole Duffel bag. [It's] the best carry-on I've ever had. It's super easy to carry and so well made that it lasts for years," she explains.

Pro Tip: Per the brand, this duffel meets most airline and train carry-on specs and size requirements.