I have added the JavaScript that I need to the bottom of my pages so that I can make use of Google Analytics. Only problem is that I am sure that it is counting all my devel
Today, whilst on a different computer than my own, I noticed μBlock Origin for Chrome was blocking Google AdSense by default. After some Googling, I found this article. It notes also μBlock Origin Firefox, μ Adblock for Firefox and Ad Muncher for Windows block AdSense by default. Most other options are listed as being configurable to block AdSense.
This seems to work and is useful because my IP is often dynamic, so the Chrome extension can follow me around as long as I am logged in to Chrome.