- Get Price Comparisons While Shopping
- Install Coupon-Recommending Browser Extensions
- Subscribe to Tons of Newsletters and Filter Them with Gmail
- Get Coupons Based on Your Smartphone Shopping List
- Keep a Shopping App Folder for Local Stores on Your Smartphone
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http://lifehacker.com/5978851/how-to-automate-your-discounts-and-always-get-the-best-price