

The inspiration:
- Pack a colorful scarf and little white dress like Blake Lively for the perfect day-to-night cruise look.
- Take a cue from sexy girl-next-door Cameron Diaz and pick up the perfect denim jacket, fab fedora and wear-with-everything shorts.
- Pack at least one maxi dress - Victoria Beckham's sleek style lends itself to a black maxi dress - it's so sophisticated yet casual and easy to dress up or down with a few pieces of jewelry or metallic sandals.
- Think boho tunics and vibrant bikinis for lounging poolside or walks on the beach, like Hayden Panettiere. Your tunic can double as a top with shorts or a cotton skirt.
Now that you've got your inspiration, here's a practical list of 15 essentials to pack for your summer cruise. Best part, everything's under $60! Inject your own personality by picking the colors, prints and silhouettes that speak to you.

1. Neutral tank top
2. Denim jacket
3. Flat sandals
4. Twill shorts
5. Striped shirt
6. Chambray shirt
7. Straw hat
8. Cotton skirt
9. Maxi dress
10. Linen pants
11. Sunglasses
12. Wedge sandals
13. Scarf
14. Print bikini
15. Crossbody bag
What advice would you give Katie? Let her know in the comments!