AdSense tip to quadruple your CTR

Came across this tip but have yet to try it, but will of course.
No question, it has been tried by site publishers with positive
results.

Putting images above the AdSense ads will encourage readers
to click on the ads according to Graywolf. Visit Graywolf's site,
Wolf-howl, for Google AdSense Tips, Tricks, and Secrets which
he is compiling. He also lists other note-worthy sites that cover
AdSense tips and such.