Avoid storing your towels in the bathroom
Have you ever wondered why bathroom walls have a tendency to get moldy? It is because it is a particularly humid environment and sometimes they have poor air circulation, which means moisture gets trapped inside for longer. That is why it is not the best place for you to store your towels, even though it might seem like the most obvious location to keep them.
Towels are absorbent, for obvious reasons. Just like they suck in all the water that is on your skin, they can also suck the water in the air. Damp fibers are a great environment for bacteria to grow in, so to avoid your towels getting contaminated, keep them in a closet out of the bathroom.