Is washing soda! If you have super dirty laundry (kids), hard water or both, add extra washing soda. We add about a cup to our loads. No more of that stinky moldy smell with kitchen clothes either, and we use bleach WAY less.
Parents with young children need to monitor, if not outright abandon, YouTube. This TED talk takes parents through “why” but high level, never let them watch YouTube with automatic play. Avoid surprise egg videos. Don’t let them watch videos you haven’t checked them and take precautions if leaving them watch unattended.