listing
separating words, phrases, and clauses that are listed out.
addresses
777 Windy Road, Olathe, Kansas 66062
dates
On July 4, 1776, the Declaration of independence was signed.
around initials in names
if someones professional title has initials, commas go around the initials.
interjections
commas go around interjections unless and ! is used
between equal adjectives
separate adjectives that describe the some noun equally. if their order can be swapped, and it still makes sense, commas need to separate them.
with clauses
with fanboys to join together 2 independent clauses after a dependent clause that starts a sentence, not when the independent clause comes first!