For towels at least, I do a "bleach load" every few weeks when I start to notice normal washing is not enough and they smell a bit after only one or two uses. A

For towels at least, I do a "bleach load" every few weeks when I start to notice normal washing is not enough and they smell a bit after only one or two uses. After I was with bleach, they smell clean and I can use them for like a week before a normal wash. I try to only use white towels.