I just got my Intercept last month. Our new Sprint bill was $75 more than we expected. My question is this. Do I need to "disconnect" from the web after browsing on my Intercept, so as not to continue to "use" minutes? (I am not sure how that works.) Also, if I do need to "disconnect" or "end" connection to the internet, how do I do it? Any help would be greatly appreciated!!