Got cable TV? Satellite radio? A cellphone or two?
"Almost any company has special deals available in order to retain customers," says August E. "Augie" Grant, professor at the University of South Carolina and editor of "Communication Technology Update and Fundamentals."
While it's not an actual "sale," September is a good time to save money before the post-Labor Day holidays -- or bank a few bucks before makers start bringing out the new tech gadgets in January, he says.
"It takes a couple of minutes on the phone," says Grant. But if you negotiate you could save "up to $100 a month if you're a heavy user of these technologies."