Dave wants to know how to find out how much bandwidth he uses every month. Leo says that if your router supports DD-WRT firmware, you can. But your router may already keep track. So look in your router settings to find out. If not, and your router supports it, you can install DD-WRT firmware. Check out dd-wrt.com. But understand, that flashing the firmware on your router could void the warranty. If you need a new one, get the ASUS router, it uses a flavor of DD-WRT already out of the box.