Long chapters, I like short ones so I can think "just one more before I go to sleep".
Agree with inappropriate sex in crime novels where it adds nothing to the plot.
I hate that women detectives or police officers can work 20 hour days, pop home, have half a bottle of whisky, get up, shower (no shaving legs or pits, or drying hair, or applying make up) then drive straight back to work. After another 20 hour shift she's still confident enough in her freshness to shag someone bent over the crime desk. Then have a five mile run to clear their head. Who are these hairless, non-sweating freaks who never need to change a tampon or have a dump? When do they buy food, or hoover, or pop in to see their mum? What about renewing their home insurance? I'm massively over thinking this!