There's really no reason to pay full retail price for most products because there are so many resources on the Web that can help you compare prices, score discounts and get the best deals. Here are 15 of our favorite sites that can help you save money when you shop online. And all have free mobile apps that you can use when you're in brick-and-mortar stores or on the go.

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Many U.S. states in the 21st century have passed online shopping sales tax laws designed to compel Amazon.com and other e-commerce retailers to collect state and local sales taxes from its customers. Amazon.com originally collected sales tax only from five states as of 2011, but as of April 2017, Amazon collects sales taxes from customers in all 45 states that have a state sales tax and in Washington, D.C.[166]
Pricena is a great price comparison app for those in the Middle East, Nigeria, or South Africa. If your online store sells to these countries, monitoring product prices on this app can help you stay competitive. You can also use their website to search product pricing. Their app shows reviews, price fluctuations, product details, and more. This price comparison app is super helpful if you’re looking to compare amazon prices. You can use it for all sorts of product categories like fashion, sports, laptops, or even for an iPhone price comparison.

On May 5, 2014, Amazon unveiled a partnership with Twitter. Twitter users can link their accounts to an Amazon account and automatically add items to their shopping carts by responding to any tweet with an Amazon product link bearing the hashtag #AmazonCart. This allows customers to never leave their Twitter feed and the product is waiting for them when they go to the Amazon website.[146]


Walmart offers the Microsoft Xbox One S 1TB Console bundled with your choice of NBA 2K19 for Xbox One, Playerunknown's Battlegrounds for Xbox One , Minecraft for Xbox One, or Forza Horizon 4 for Xbox One, as well as Red Dead Redemption II for Xbox One, a PowerA Wired Controller for Xbox One, and a $5 Xbox Gift Card for $259 with free shipping. That's $30 under the lowest price we could find for these items purchased separately elsewhere.


Looking for a portable hard drive for your laptop or PC? You might be interested to know that Amazon currently has the LaCie Porsche Design 2TB Mobile Hard Drive on sale for $94.99. That's a savings of $55 off the drive's $150 list price. With USB-C and USB 3.0 compatibility, this drive offers simple plug and play installation with virtually any PC or Mac from the past or future. When you're on the go and time is scarce, fast transfer speeds up to 5GB/s lets you drag and drop files quickly. This hard drive packs a generous 2TB of storage making it perfect for photographers, gamers, graphics artists, and video editors. 
WIRED's Lauren Goode reviews the latest iPhone models -- the iPhone XS and iPhone XS Max -- and tests the battery life, camera and video capabilities. CORRECTION, Sept. 19, 5:05 PM EST: The video above misstated the water rating for the iPhone XS and XS Max. While the IP68 standard states that devices must be waterproof to more than 1 meter, Apple's new phones are waterproof up to 2 meters for up to 30 minutes."
Throughout the store there are features like “Most-Wished-For,” a collection of products that are most added to Amazon.com Wish Lists; “Trending Around NYC,” hot products that NYC-area customers are buying on Amazon.com; “Frequently Bought Together”; and “Amazon Exclusives.” These features, along with customer review cards with quotes from actual customer reviews, make it fun and easy to shop.
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