Mashable - Today's consumer culture faces constant temptation and visual stimulation. Therefore, it's important to stay efficient and savvy when it comes to shopping. Whether you're looking for the best deal or want a better way to organize your grocery lists, these iPhone apps aim to make your purchasing life easier. Triggered by voice activation, barcode scan or snapshot, the apps make finding the best deals around town incredibly simple. Best of all? They're all free!
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