Don’t use unnecessary instances of “which,” “as,” “with,” and “while;” use modifiers instead.
Two example: 1. Change the sentence, “I drove down the freeway, which made me feel carsick” suffers from the “which.” TO: “I drove down the freeway, feeling carsick.” Example 2: “The teacher cleaned her desk while listening to The Beatles.” TO: “The teacher cleaned her desk, listening to The Beatles.”