I used to fall for flashy discounts and so-called limited-time deals until I found Keepa. It's a handy tool that collects and analyzes price data and sales trends for products sold on Amazon. Now, I ...

I had seen the targeted advertising. I kept receiving the text messages after signing up on its website that said: Buy three KEEPas, get one free. At $25 each, four would cost $75, which seems pricey ...

If you often shop on Amazon, you'd probably notice how wildly prices fluctuate. I've been burned many times thinking I was getting a deal, only to discover the price had been jacked up just before a ...