I just found this one and I can’t wait to try it out.

Ever order something and then forget you ordered it. Then a few days later you realize you haven’t gotten it yet and then you spend 20 minutes trying to track it down? Or, you’ve got a package on it’s way and you’re not sure it’s going to get to you in time, so you keep visiting the tracking page over an over again?

Well, you can use twitter to track your package for you. TrackThis supports FedEx, UPS, USPS and DHL tracking codes. They will send you a tweet every time your package changes locations. Who wouldn’t love this?

Check it out here!

Update: I’m using it now to track a FedEx shipment. It works like a charm!