Now a days usage of internet is increased. There are lot of ISPs with lot of means of internet viz. dial up package,GPRS, 3G data cards, EVDO cards, Broadband etc. First of all , the user should know what will be his usage. Depending upon that he has to select correct plan.  There are type two types of plans,  Limited and Unlimited and there are two types of payment methods, Postpaid and Prepaid. One should know, which plan and which payment method suitable for him.  Generally speaking, Postpaid with Unlimited plan is suitable for everyone to avoid  excessive bills. Primary thing is how to use internet efficiently and cost effectively?  If you are choosing Limited plan, prepaid is the best.   If you are using  2G or 3G prepaid , you have to subscribe suitable package available. If you are using without subscribing data packages it will cost you more. If anyone likes to use postpaid limited plan, he should know how to check usage. This may be get from the ISP while taking connections. Checking usage is now available in both from websites of the ISP and even from sending SMS.  Some ISPs are providing Alert messages on screen and also SMS to the mobile registered when the usage exceeding the limit. Basically, the PC or Laptop should be free from virus, spyware, malware which will in turn help to use internet economically.  And  the automatic updates of various programs should be turned off to use internet cost effectively. One more important thing is securing wifi connections. Changing default password  also leads to use internet economically. Some ISPs are providing discounts for those paying  for their postpaid plans in advance for 1 year ,2 years, 3 years etc. For example, Pay for 10 months Use 12 months. This will also lead to economical usage of internet. Ok friends.  Please keep this in mind and Happy browsing.