If you intend to take advantage of completing free offers, here are some great tips that will help you
Forms:
To complete free offers, you're required to fill out a few forms per offer. It becomes a little redundant and a waste of time when you have to keep putting your information over and over. There is a program that will fill out all of those boring forms for you, it's called "RoboForm". Once you make a profile with all of your information in it, RoboForm will fill out those forms for you. You can also use it on surveys. A toolbar will be added on your internet browser once you install it and with one click, you can fill out forms.

Cookies:
When ever you do an offer, a cookie will be placed on your computer for tracking purposes. When doing multiple surveys from the same company, if you already have one of their cookies on your computer, then they will know that you have already done one of their offers, thus making the offer not approve. To stop this, cookies need to be deleted after every few offers. You can use a program called CCleaner:

Emails:
Most survey companies keep a database of emails that were used on their surveys, for tracking purposes, so if you use the same email more than once, they will know that they already have your information, and would probably not give you credit for completing that offer. I would suggest changing emails frequently, so you will get more offers to approve. You don't really want to spend time making a bunch of emails do you? THEN USE GMAIL! So, since gmail doesn't read periods in their email addresses, take advantage of that! For example:

e. xampleaddress@gmail.com
ex. ampleaddress@gmail.com
exa. mpleaddress@gmail.com
exam. pleaddress@gmail.com
examp. leaddress@gmail.com
exampl. eaddress@gmail.com
example. address@gmail.com
examplea. ddress@gmail.com
examplead. dress@gmail.com
exampleadd. ress@gmail.com
exampleaddr. ess@gmail.com
exampleaddre. ss@gmail.com
exampleaddres. s@gmail.com

PayPal:
Sign up for a free Paypal account. Many GPT Sites will give you the option to be paid by check, some by WebCertificates, almost all of them offer payment through Paypal and some ONLY offer payment through Paypal. Paypal is quick, safe, easy and convenient. To accept Paypal payments you will need to make sure your Paypal account has been verified. To do this you will need to link your Paypal account to your checking account.