Rich DeMuro filled in for Leo Laporte this weekend, and recommended a couple of apps that will help you make purchases and track them. First is an app called Earny. This tracks purchases that you make at major retailers and looks for price drops. Prices change all the time, and we typically check prices before we buy things, but not afterwards. If Earny sees a price drop on a recent purchase, it will collect a refund for you by reaching out to the company. The pro to using this app is obviously the cash you'll get back from purchases.