If you quit the other deal places and just use
www.ereaderiq.com, it helps you stay focused on YOUR authors and series when they come on sale. That way you are ONLY looking at quality books at discount vs. random junk on Amazon. Even though I spent a lot this last month, and gripe about it, I also am not getting random books but books of authors I already enjoy like Ed McBain, Terry Pratchett, Cynthia Harrod-Eagles and Mark Edwards. Plus I'm often getting the matching whispersync title for $2.99 or less.