Shoppers at the mall are skipping the checkout line and buying online instead.
A survey by rewards company Parago found that 58% of smartphone owners use their phones in stores to check prices, then buy later from an online retailer -- usually Amazon.
Cost is the key motivator, says Parago. But getting quotes from large e-tailers is just one of the ways you can use your mobile to land a deal.
Smart (phone) strategies
Get a match. Using results from the free comparison-shopping app RedLaser as a bargaining tool, ask for a reduced price.
Should the store balk (and you're feeling guilty about going online), request a deal sweetener, suggests frugal-living expert Erin Huffstetler -- a free accessory for your purchase, for example.
Log in to the same store. Promotional apps from big retailers such as CVS and Target offer personalized in-store discounts, says Michelle Madhok, founder of the deal-hunting site shefinds.com.
One neat trick she likes to try: If a chain sells a product on its website for less, buy it online -- and get it shipped to the store free.
Look beyond price. Stores can offer customer-service perks you can't get for goods purchased online, such as free maintenance for a bike, software setups for a new tech tool, or a promise of ongoing help.
Does the worth of these extras outweigh the online discount? If so, Huffstetler recommends staying in the store.