Even when you have like a dozen visits a day, checking google analytics now and then is nice (hey! a vsitor from Belize!). However, it is nice to be able to tell what traffic comes from yourself and what comes from your two readers (if any). A bookmarklet can help you to enable a filter that will allow analytics to remove you from its stats, or even to track your own usage of your site.
Update: bookmarklet magic moved from the defunct googlepages to amazon s3 to http://code.verg.es/sharebookmarklet.html