Laundry Hacks for Smelly Laundry! How to wash smelly towels and how to get sour smell out of clothes left in the washing machine. When your towel smell like mildew, how to remove that stinky towels smell and get that musty smell out of towels for good. Learn how to make towels smell fresh again. LOVE these smelly laundry hacks, tips and tricks for when your towels smell.