Fill a spray bottle with 3 percent hydrogen peroxide.
Spray surfaces with the hydrogen peroxide, then wipe with a damp sponge.
Fill another spray bottle with 1 qt. warm water.
Add 1/4 cup vinegar to the water.
Pour 2 tbsp. lemon juice into the spray bottle.
Spray the same surfaces with the vinegar mixture, then wipe with a damp sponge.