Second, it’ll track the prices of those products and ... tracker is also great for watching prices on just about any item on Amazon and on a ton of other popular shopping sites, like Newegg ...

Thankfully, Amazon gives you the ability to track the products you're itching ... so you can kiss those savings goodbye when the item sells out to all those other savvy Prime members out there.

Amazon.com was sued on Wednesday by consumers who accused the retailing giant of secretly tracking their movements through their cellphones, and selling data it collects.