Two more overused words: absolutely and exactly, used when a simple "yes" would do.
I started noticing this a couple of years ago; I'll have one of the national morning shows on in the background for a while waiting for the news and weather. Whenever the hosts are interviewing someone, seems like every yes/no question is answered with "absolutely" or sometimes "exactly."
One of our local weathercasters is awful about this. Whether she's talking to an anchor or interviewing some group during the weathercast or hosting her Saturday morning news program, she's the queen of absolutely. If you had a drinking game where you would down a shot every time she says it on her Saturday morning show, you would have acute alcohol poisoning before the show was over.