I usually wake up at 6 a.m. Brush my teeth. Take a quick shower. and eat a light breakfast before heading to work.
Revised and Explanation
I usually wake up at 6 a.m., brush my teeth, take a quick shower. and eat a light breakfast before heading to work.
Commas are used to separate actions in a list. They're placed before "and or FANBOYS" in a list of three or more items (Oxford comma is optional but recommended for clarity).
Within this lesson, I have learned that punctuation marks help structure the sentence, improve clarity, and make the writing grammatically correct.
