Shes lived here 3 months. Shes a lovely girl, and we do have a laugh- shes just doing things that are getting on my last wick (and in one instance, my neighbours)
Despite me telling her countless times not to, she smokes indoors with no windows or doors open. And she smokes a really stinky brand that smells partically horrible. We agreed that she could smoke at the front door, as long as it was open. Or in the lounge if the french windows are left open. She leaves cigarette ends everywhere- in undrunken mugs of tea, in bowls shes eaten out of and despite me asking her to put them in the outside bin (which is right next to the front door and a 10 second walk from her room and the lounge/kitchen) she throws them in the kitchen bin so im met with the stench everytime I open the bin. Apparantly im a hypocrite because I smoke my odorless and mess free electronic indoors. Right 
She constantly borrows things without asking. She doesnt see a problem with going into my room and going through my drawers to find something when im not there. I dont have a gun hidden in there, but I dont want her rooting through my vibrators personal belongings. Shes borrowed clothes and ruined them, and then refused to replace them- the latest being a pair of £90 jeans I hadnt even worn myself. I did lend her things in the past, but that was when I believed she would treat them with a bit of respect and when she wasnt taking them of her own accord. She just doesnt see the problem, and im seriously considering on finding a way to lock my door.
Shes the messiest person ON THE PLANET. When she has been off, ill come home to dishes everywhere, towels on the bathrolm floor and general debris everywhere. And then she kicks off if I throw it into her bedroom. She does fuck all. Shes had the same bedsheets on for weeks, and they were only changed when her Mum came over one day. Oh, and she takes her washing home every fortnight. 
We agreed when she moved in she would pay £15 a month into a household kitty for joint household essentials- kitchen roll etc. She paid it the first month, and has since refused but funnily enough will still happily enough wipe her arse on my toilet roll. She doesnt eat properly- ready meals, pot noodles or sandwiches.She isnt lazy, she is really bright and has a good job. She would just rather spend her time smoking, doing her nails/hair and thinks theres better things to be doing with her time then housework and cooking. I appreciate im probably a bitnmore house proud than her as its my flat, but shes taking the piss a bit.
We have a parking space outside our front door that belongs to the flat upstairs. The rest of the parking is at the back of the building. Neighbour upstairs doesnt have a car, but her boyfriend stays Friday-Monday, so has told us we are welcome to use it during the week but otherwise her boyfriend will be using it. Flatmate has decided its her parking space. It wouldnt be too much of a big deal, but theres no free parking in the residents parking, some people already have to leave their cars on the street outside. Neighbour is understandbly pissed off because its the space allocated to her property
AIBU to be getting really narked? Im seriously considering of finding a way to get her out!