Ridiculous, IMO. Some do all that tho. Herbs are for when you cook them.I spoke with a woman recently who told me her routine is to clean out water bowls with soap and water twice a day, wear only designated coop shoes that she cleans daily, AND cleaning the entire coop out with bleach DAILY!!! Her oldest chicken is 15 year old! But who can actually commit to that sort of routine (and for 15 years?!!!.. plus I thought bleach in the coop was a no-no).
Never use any cleaner or even water in coop.
I only clean waterers twice a year as they are closed so don't get dirty.
Check for bugs once a month, permethrin dust or spray if I find any.
-Google images of lice/mites and their eggs before the inspection so you'll know what you're looking for.
-Part the feathers right down to the skin around vent, head/neck and under wings.
-Best done well after dark with a strong flashlight/headlight, easier to 'catch' bird and also to check for the mites that live in structure and only come out at night to feed off roosting birds.
-Wipe a white paper towel along the underside of roost to look for red smears(smashed well fed mites).
Good post about mite ID by Lady McCamley:
https://www.backyardchickens.com/threads/my-chicken-has-mites-now-what.1273674/page-2#post-20483008
-I use poop boards under roosts with thin(<1/2") layer of sand/PDZ mix, sifted daily(takes 5-10mins) into bucket going to friends compost.
-Scrape big or wet poops off roost and ramps as needed.
-Pine shavings on coop floor, add some occasionally, totally changed out once or twice a year, old shavings added to run.
- My runs have semi-deep litter(cold composting), never clean anything out, just add smaller dry materials on occasion, add larger wood chippings as needed.
Aged ramial wood chippings are best IMO.
-Nests are bedded with straw, add some occasionally, change out if needed(broken egg).
There is no odor, unless a fresh cecal has been dropped and when I open the bucket to add more poop.
That's how I keep it 'clean', have not found any reason to clean 'deeper' in 7 years.