Easily heard on a single conference call, and all of them make my skin crawl:
“if there’s a there there”
“So….” (begining every single sentence)
“Actually,…” (beginning of every answer to questions)
I’m not sure how these things get started, but it’s almost as fascinating as it is annoying. They seem to have a lifespan of about 3 years, with residual use dwindling on for wayyyyy too long.
I’m going to keep adding to this list, so feel free to vent about your own pet peeves.