If you're not careful you can end up with a line such as "Something happened and things changed," and it will sound so much like everyday speech you won't even notice it until "someone" in your workshop points it out! Especially, red-flag the word "thing" wherever you see it!
There are two "things" to do with these words (or rather, here are two suggestions for improving upon such wording when you find it):
1. Be precise; replace the vagary with the truth of the matter. Is it true that "There was nothing there"? Or was it more like, "The room had no furniture"? Was it "Somehow she got the money someplace," or "She tapped her relatives for money and borrowed from her friends"?
2. See if you can excise the word. Example: "I will see her again sometime."
And, Friedman said, the "biggest bad advice" about opening a novel is "Start with action." She said she thinks, "But I haven't been made to care about these characters yet." Ideally, the first page introduces a character the reader feels he or she knows and understands.