One common mistake a lot of people do is they count themselves as traffic to their own site. Don’t! You may visit your own site hundreds of times a week (in an addicted scenario), but remove yourself by creating a filter in Google Analytics as you want real data and you are moving the average by quite a bit.
Create a filter in google analytics by following this instructions:

http://www.google.com/support/analytics/bin/answer.py?answer=55496

To find out your ip go to http://www.whatismyip.com/