It could be said I wasted an entire day of my shooting time in Ontario this July teaching myself how to photograph dragonflies.  If you haven't tried to do it you really should, and you should do so while perched on a rock in a boggy, buggy corner of a beautiful river that also happens to be the nesting ground for a large family of extremely territorial watersnakes who are  quite fond of the rock you are standing on for their all-day sunbathing.  All morning I tried and failed.  At lunch I unloaded my cards full of bad shots and recalculated what I would try next.   And back to the Rock I went with a new card and a fresh battery and found the snakes had retaken their position--they would only be defeated by being mock-beaten with a swim noodle ( a task undertaken by someone not myself).  Things improved.  I have a lot of shots of dragonflies too, thank you, but the real gain was this:  the settings I used for the dragonflies opened up a world of possibilities for seeing the river anew.  Once again I am reminded of the magnificence of Samuel Beckett:  "Ever Tried?  Ever Failed?  No matter.  Try Again. Fail again.  Fail Better!"