The products you use in your washing machine can build up over time, compounded by lint, mildew and good old-fashioned gunk. Cleaning is easier than you might think. Fill the machine with the hottest water, highest load size and longest wash. As it fills, add a quart of white vinegar, then add a cup of baking soda. While this solution sits for an hour, clean the inside of the lid, bleach and softener wells and the top and sides. Run the washer, then repeat with another quart of vinegar and wipe down the washing tub.