Love to travel? So do the makers of these five subscription apps. For a small monthly fee, they'll help you find the best deals on flights, hotels, and some other stuff we turn a blind eye to.

Plan your perfect itinerary with intelligent recommendations based on your interests, time, and credit history.

Whether you're serious hat enthusiast, or just a filthy casual, this new app revolutionizes how you organize, care for, and expand your hat collection.

Stay up to date with the latest hat trends, get personalized hat care reminders, and use predictive analytics to discover the last place you left your hat.

Why follow the crowd when you can be the crowd?