Geograph - photograph every grid square

My local church decided to have a hobbies day this weekend (Saturday). Not wishing to miss out on an opportunity to showoff my many and varied photographs, and wanting to promote the Geograph project, I set about choosing slides to use in a powerpoint / slide show. I wasn't expecting to be able to use direct/internet link, so I screen-dumped the homepage, login, search, and a number of other useful pages. There was a great deal of interest throughout the day, particularly from other...