I've remembered a few more (apologies) - drinking 4 or 5 strong beers every night, followed by whisky, followed by snoring like a hippo all night.
Breath that could strip paint from 5 paces - his SIL was driving us somewhere once and had to open the window when he was talking to her, I could see her gagging.
Living in a filthy, damp, smelly, untidy house - 2 mountain bikes, numerous van and motorbike parts stored in the (v small) living room, ironing board constantly out, permanent laundry drying in there too, nowehere to sit because the sofas were covered in clothing/helmets/parts/mess, coffee table was the same, covered in crap, wallpaper peeling off the staircase walls because of damp, cobwebs everywhere, broken/cracked toilet pan, broken toilet flush mechanism. He wondered why I refused to move in with him 
. The kitchen (just a space with a cooker and a sink in it really) was filthy, no cupboards or plaster on the walls. It's been exactly the same for about 6 years, I tidied for him occasionally when I couldn't stand the mess any longer but it'd be back to normal within hours
Cupboards full of his ex's belongings that he wouldn't bin (but never noticed when I did).
Car and van full of crap, some of it dated 2005!! Expecting me to be happy about sleeping in back of said van amongst all the crap (including bottles he used for pissing in) when we went "camping".
WHAT THE FUCK WAS I THINKING???
I did mostly enjoy his company though, when he wasn't being a pissed paranoid narcissistic meff. He's currently seeing someone who lives nearly 300 miles away, where no-one else knows him. Good luck to her, she needs it.