I'm late to the conversation, but for the past few years, the word "today" seems to be used much more often than it used to be. "What I've made for you today is...", "What I'd like to talk about today is...", "Did you find everything you were looking for today?" It isn't that it's inappropriate in any of those sentences; it just seems superfluous. When you're explaining the dish you're presenting, I will understand that it is today's creation you're discussing. If we're sitting down to talk, I am going to deduce that the topic you're introducing is intended for today's conversation. Since I'm in the store today, I will assume when you ask me if I've found everything I was looking for, it is about this particular trip that you are inquiring. I don't know that I'd go so far as to say the overuse of this word bothers me, but I definitely notice it.