So Holla Forums story time. I had a roommate for a few years, well three in fact. Rent was super cheap so I stayed and saved a lot of money.
Anyway, while they roommates were nice people and very friendly, giving, and all around good people.. the way they kept their home was third world tier madness. The kitchen was so gross I wouldn't cook in it, if I wanted to I had to scrub the thing top to bottom front to back, wash dishes, take out trash, clean the fridge, scrub the stove top, etc. One time I walked into the kitchen and saw a stack of pizza boxes started, I wasn't going to touch it, not my mess. So I waited and waited, the stack got larger and larger. It started on a little table/shelf thing that was just below knee height. The stack eventually got taller than I am at 5'10" tall. Did they take them out then? No, they started a second stack and immediately had 5-8 boxes on it. That was where I drew the line, called the guy up stairs, and helped him crush them up and take them out.
The living room was an equal disaster area, boxes everywhere. They'd spend money on weeaboo stuff and cabinets to display them, old computer parts, various knick knacks, and just pile them up all around. His g/f had a habit of collecting all this arts and crafts stuff she rarely (if ever) used and piling it up as well, so many damn pens and markers man, barely ever touched or even opened in most cases.
The basement was big.. or would have been, except it was pilled FULL of cardboard boxes and trash. They kept a bag hanging off a chair to throw trash into and would wait till it was full to do anything, and it cluttered the walk way. The stairs had boxes on them making going up and down annoying and hazardous. The garage was two car and you could only just barely put two cars in because it was pilled up with trash and boxes where you'd normally store things like lawnmowers and what not, so that got shoved out where the cars went. I had to play tetris arranging it all so I could fit my car inside.
The REAL problem though? Their four cats. They wouldn't properly clean up after them if they threw up, they'd wait till it "dried up" before picking it up, never thinking that its drying by soaking into the carpet. Sometimes they'd shit in the floor and it would be left all the same until it "was dry." They scratched the fuck out of doors and banisters. And the guy and his girl didnt care hardly at all. There were lots of other little things that needed fixed, leaky hot water tank, pipes needed cleaning throughout the house, etc.. never touched. Hell the bathtubs never even got cleaned.
It was kind of hilarious when they added another guy in the last spare room. Within six months he'd turned it into a trash heap to, but THAT upset THEM. He piled food boxes and bags and soda bottles up, spilled something massive in the floor and left a huge stain, etc etc. never cleaned, etc etc. His room started producing gnats and fruit flies, but they'd only ever find their way to my room which pissed me off to no end. Either way he did all the same things THEY did, but for some reason it upset them when he did it. He lived just like they did. Their bedroom carpet was perma-stained by cat shit and puke, the room was a disaster area, I mean it was horrific, and his was the same. They were on equal footing.
I kept MY room tidy. I mean there was "clutter" because I had my stuff in boxes and never unpacked really, but there was no food or spills, no empty boxes just piled up, nothing of that sort. And before I left I cleaned the fuck out of it till it was spotless. It literally looked like it didnt belong with the rest of that house. And I told them to keep it that way and do something nice with it. Maybe if they have a nice room to put a bed and some bookshelves and books in and go read, they'll start to appreciate the clean and want the rest of the house to be the same.
But more than likely they'll just pile that room up full of crap to.