I use Mozilla's FireFox browser and with it, you can download a very small, plug in program that will track your minutes/text useage.  A small Verizon label and the current minutes used show up in the lower, right hand corner of the browzer's toolbar.  You can also set a limit on your minutes used so that if you reach that, the icon number changes to a bright red color to alert you even moreso.  And, by right-clicking on that icon, you click on "Go to Verizon Billing Site" to verify your info, bill, etc.