I want page trawler to take a screen grab of every page.
Chris Massey commented
Particularly useful if we can combine these with analytics data to see if, for example, users are exiting / going in random directions / getting stuck on a particular page. If we could get an activity heatmap working as well (e.g. with Clicktales or a similar service), this would be handy, too.
Not for browser test etc. but to help visualise the site.