I was a slattern for a couple of years I think it was a mixture of having 4 very small children in quick succession and living in a small house, I was also going through some crappy relationship stuff but ho-hum.
The only thing I can remember is the total drudge of everyday I wouldn't put the light on at night as I didn't want to look at the messy carpet
. It wasn't anywhere near like the houses on How Clean Is your House but there was crayon on the radiators, crumbs on the floor, the dog and dc ripped the wallpaper and the sofa was a mess. I was so unhappy nothing I did made it look better and I would just give up. I wouldn't let the dc bring friends back and I hated knocks on the door.
Now I have moved and have 6 dc but my house is clean and (mostly) tidy, we are all so much happier. We hardly row, ds can have his mates round and go upstairs without me cringing.
DP does a lot of stuff and I just tidy as we go and it's rubbish to say children are unhappy if the house is tidy. I just put a load of washing in, ironed three outfits and mopped the hall and kitchen floor all while dd ate her lunch in her highchair chattering away to me and happy as larry. That took around 30 minutes.
I would never go back to a messy house it was all so depressing and miserable for everyone and I spend more time now with my dc then I did when it was messy because I was always playing catch up or searching through piles of clothes looking for a sock or something.