Best suited for casual conversations or familiar contexts; less common in formal writing. We need to buy apples, bread, and so forth for the picnic.
Pro Tip 2/3
List Continuation
Use it to indicate there are more items in a list without naming them all. The grocery store has pasta, cheese, and so forth.
Pro Tip 3/3
Avoid Repetition
Helps prevent listing every single item or detail, making speech or writing more concise. I love playing outdoor games like soccer, basketball, and so forth.