Must admit that I probably appear to be the weird neighbour (partially) looking at some of the previous posts
My car is 18 years old, but I clean it inside and out every weekend regardless of how dirty it has become in the previous seven days. I don't spend hours on it (let alone a day or two), but I just like it clean. I also don't go around it at the end of every day cleaning random bits of normal dirt off, but any bird droppings get cleaned off ASAP because the droppings can damage the paint. I also do the majority of car maintenance myself which probably also appears odd to everyone else as well.
I have two parking spaces, but I actively chose to park my car so it is parked with the 'dividing line' down the middle of the car. This is mostly due to the fact that the neighbour's second parking space is immediately next to one of mine and I don't trust them to be careful around other people's cars and my other parking space has a hedgerow pretty close to it. Most would probably assume that I just can't park properly.
I give the windows downstairs a quick clean on the outside after cleaning the car (so every week) to keep what everyone else can easily see looking presentable. They are still finishing a new housing development on the other side of the aforementioned hedgerow so it doesn't take long for the windows to look dirty on the outside from all of the dust. I clean the windows upstairs once a month or so. Once the construction has finished maybe I'll do all of them less often.
Odd things about my neighbour. He's lived there for two years (house was a new build in 2019, but it took him six months to move in despite buying it immediately) and has never done anything with his garden. Part of being a new build meant that the garden came with a small patio and paving slabs leading to the garden gate, but he has not done anything to it other than cut all of the weeds down once last summer, no turf laid or anything like that. I am not exaggerating when I say some of the weeds were taller than our fence (standard height) and the rest of the weeds were probably as tall as me at just shy of six foot, the weeds are probably up to about two foot again now. He has a similar thing right outside of his front room window for everyone else on the road to see, but he appears to think that these weeds are proper plants/flowers from what I can tell. I'm not in to gardening, but I like the outside of the house (front and back) to look tidy and presentable. Crazy thing is he is a lecturer at a college so gets a hell of a lot more free time than most with summer holidays, etc.. When I last took a parcel in for him (Christmas time) I took it around to him to find he still didn't have flooring down in his entrance/hall way and presumably never has done.
He has cleaned his window(s) once and this was a couple of weeks ago, our outer window sills should be white, but his was genuinely brown in appearance until a couple of weeks ago and I think it is permanently discoloured now. His car gets cleaned outside once every six months if it is lucky, one clean is probably from when it gets serviced and he probably puts special effort in to having someone clean it just before its MOT at a guess. It gets cleaned inside even less than that.
Essentially, I think that we're just polar opposites of each other, and I'm also a curtain twitcher to top it all off