Using AdSense Preview tool will help you, you can click the ads in preview tool, your clicks will not be counted, this tool works for IE and can be found here https://www.google.com/adsense/support/bin/topic.py?topic=160
Well i've done it, but they haven't counted. I guess they catch your ip when you login, and block it?
ok, you can stop replying now, first reply was helpfull enough Yes it is allowed, read the second post in this thread
Do not, and if you do on accident like I did while trying to highlight the text, send an email to google. They thanked me for my honesty and gave me like 10 links to things saying how to not click your own links.
I did that once and they sent me a big baloon with text "don't copy your AdSense urls and open them in new window" and told me to put it above my screen