Hilary Duff Shared Her Favorite Small-Business Products on Amazon — Shop Her Picks

Before you jet-set off onto your next big summer vacation, you'll want to make sure you have this Stojo Jr. Collapsible Travel Cup ($11, originally $15) in tow. The product is a bestseller on Amazon — and for good reason. Not only can it hold up to eight ounces, but it can also collapse down to 1.9 inches — making it the perfect portable cup to meet all of your on-the-go needs.