Lucca
What is it with all this bleaching ???????
That's a good question. I bleach my dishcloth every couple of days - a tablespoon or so of bleach on top of the cloth which is then covered with water and left overnight. This kills germs in the sink too, and then the drain when I pull the plug in the morning.
I am never sure whether this is better or worse for the environment than using disposable 'cloths' like J cloths or those rectangular sponges that need to be replaced all the time. One dishcloth lasts me weeks.

I just give them a cursory rinse beforehand. I use the brush for pans.
