4. Leave the Washer Door Open
Leaving the washer door open is the most important and the most obvious. Closing the door stops airflow leaving a warm damp environment. Even cracking the door open slightly and the detergent dispenser will allow the machine to dry out and help inhibit mold growth.
I have thoroughly cleaned my machine and follow these tips. My machine never smells and does not make my clothes smell.
For a more details read the full blog post.