Count me in with those who toss the food/counter sponge in the dishwasher weekly. The floor sponge doesn't need to be sanitary.
I'm not a germophobe. I work with germophobes and they make my brain hurt. Where I used to work, they had a coffee percolator filled with plain water so people could use it to make tea or instant cocoa/coffee. That water wasn't hot enough for me to make tea. I think the water needs to be boiling hot when it hits the teabag, so I would put the percolator-hot water in a clean mug and nuke it for 1 minute until it boiled, then pour that over my teabag. One day I poured a little too much water into the clean mug and had some left over after pouring over the teabag (in another mug), so I poured the rest of the boiling hot water back into the percolator.
A germophobe saw me pour water from the mug into the percolator and was disgusted, totally grossed out, and she made me empty the entire percolator (1 gallon with approximately 1/8 cup of boiling hot water from a clean mug in it) and refill it with fresh "clean" water. I tried to explain to her that the mug was clean and was only used to boil water, so it's very
clean. I tried telling her that even if the mug wasn't 100% germ free, the boiling water poured back into the percolator was 100% germ free. She wasn't buying any of it. She said nothing should ever go from someone's personal utensils into the communal pot.
That whole exchange made my brain hurt.