askhan

> Example: If you’re looking for me I’ll be in my office. > Revision: If you’re looking for me, I’ll be in my office. > Example: Due to the fog our flight was delayed. > Revision: Due to the fog, our flight was delayed.

If the sentence is unambiguous without the comma then lean towards omitting it. Especially with the second example, with the clause being only four syllables long, the comma slows down the reader so much that the music of the sentence is broken. "Fog our flight" cannot be misinterpreted — nobody thinks of fogging a flight. Indeed the lack of a comma foretells to the reader they can confidently plow ahead through a well-tended sentence.