One advantage (at least that looks like it to me) of using GET instead of POST for initial experimenting/testing is the very same thing that is a disadvantage to GET - it is visible as part of the URL. That feature makes it very easy to simply create a test url in your browser that passes whatever data you want along to your test page. You just add the "?var1=something" for example then your web page can be looking for "var1". You can easily change the data being passed (even bookmark it if you want) to try different values of things. It wasn't obvious to me how to easily generate a test using POST from a simple browser.