If you've got an Echo device, Alexa can help you win $10,000 cold, hard cash. Here's how to get her to help on Echo, Echo Dot, Echo Plus, Echo Show, or any other Alexa-enabled device.

Listen for Double Your Dough entry codes on Alexa weekdays at thirty-five past the hour from 8:35 am to 5:35 pm. If you download the Loon app and opt-in for contest alerts, we'll send you reminder notifications so you don't miss the codes when you get busy.

Don't own an Amazon device? Want to learn more about Alexa? Find out everything you need to know from Amazon.com.

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Having trouble? We're happy to help. Send our tech geek an email HERE.

In addition to winning the $10,000 grand prize, you could also be one of our daily $2,000 winners throughout April.

LOOK: Stunning vintage photos capture the beauty of America's national parks

Today these parks are located throughout the country in 25 states and the U.S. Virgin Islands. The land encompassing them was either purchased or donated, though much of it had been inhabited by native people for thousands of years before the founding of the United States. These areas are protected and revered as educational resources about the natural world, and as spaces for exploration.

Keep scrolling for 50 vintage photos that show the beauty of America's national parks.

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