In the past few months, scientists have discovered the Ultimate Road Trip across America. This optimal route is the quickest way to drive across the U.S., and along the way, you’ll find a National Landmark, National Historic Site, a National Park, or a National Monument at every stop.

Anyone else hear adventure calling their name? We get it: you’re feeling the wanderlust, and you’re ready to go. Just pack your bags, grab your friends, then have the road trip of your lives.

The only thing holding you up? How to pay for it all.

From gas to food to lodging, driving cross-country gets expensive quickly, and you’ll need to find a way to afford it. Here are three ways to make money while you’re on the Ultimate Road Trip:

1. Roadie

There are lots of ways to make money on the road, but Roadie may just be the easiest and fastest way to do it. If you have extra space in your car, you can earn extra cash by offering to pick up and deliver people’s stuff along the way.

Just check what Gigs are along your route and offer to help out — some drivers have ended up making hundreds, if not thousands, along the way.

2. Gigwalk

Why not get paid while you sightsee? Gigwalk lets you do just that by setting you up with quick, local jobs. Think retail shopping or checking out shopping displays — jobs can last anywhere from 5 minutes to a few hours.

3. Turo

Spending the night camping in a National Park? Or maybe you’re planning to explore the next city on foot. Rather than just letting your car sit in a parking lot, rent it out for the day using Turo. People will pick up your car from a designated spot, borrow it for the day, then return it to you before you need to hit the road again.