ive been using this mod for a while and one of favorate items style wise is the washing machine, however i do feel like theres a missed opportunity to have it be use for the sake of hygiene .

my idea is that cloths get dirty while working jobs, whether that be spills while cooking ,sweat and dirt from hard manual labour or just standard smells from wearing for a long time.
never seemed to make any sense that a pawn would be ok with wearing the same cloths till the day they die (no matter how long or short that life was). pawns could be set to change out of these cloths at that dirt threshold and be replaced with clean ones while putting the dirty ones in the washer

another addition i was thinking of was towels , they would have 3 uses (each use lowering a small mood buff perhaps) before needing to be washed to prevent a big mood debuff, no one like a dirty towel!.
uses of the could be from after showering , bathing, swimming , using the sauna or being caught in the rain and needing to dry off.
towel use could be optional for all of these(fairly certain most people use them for saunas, idk never been in one)
material cost of towel could be how large of a buff for using something of that quality.

other ideas
-swimwear- something to wear in there for the prudes that don't like skinny dipping
-changing rooms designations ,cloths locker, wall hooks for cloths. adds flavor for the pools
-pipes that break down time and need to be fix and replace, ie wood pipes not being good for long term
-fire hydrants pawns can use these to spray water on flames , think flame breath but water
-2x2 luxury showers for the 5 star hotel builders among us
- floor vents/air ducts for temperature dispersal and perpetuating jokes
- showering in underwear (using the underwhere mod) for prisoners/colonist, realistically thats what happens in prisons
- longer showers/baths, good for stress relief and perhaps build skills like social(singing)
- shower curtains to avoid embarrassments (and for surprise stabbings)
-poop bucket/chemical toilets for travel uses like bed rolls and for away from base defences
- soaps and cleaning liquids for showers and the washing machine
-temporary hair change after shower/baths/swimming/rained on cus your hairs wet and it loose its style
-armour polishing, like dirty cloths, body armours can dull aswell as wear out, keeping armour polished would please its wearer and build on the rp of being at military base standards.

im sure i can think of more but these are some of my ideas, i don't really expect any of them to be implemented, im just throwing ideas out that might interesting