The beige carpet gets dirty easily, especially with two young children. I have to clean (spot treat, vacuum, steam clean, and dry) it about once a month or it looks embarrassing. This is not a fun or quick process and it seems the carpet gets dirtier and dirtier with time.
Ripping up the carpets and installing wood floors would be a pain, but it is almost worth it considering how often I have to clean the carpets. Besides, I also have a good friend who is very handy and is willing to help me install the flooring for free.
I don’t bug the owners about small stuff. We’ve made a number of minor improvements over the years to the landscaping with plants, grass, installing sprinklers, painting the exterior, etc. and I only charge them for parts.
When we first moved in SDGE said they wouldn’t light the pilot to the original heating unit because they said it was a fire hazard. The original water heater sprung a leak and needed to be replaced and there was a hot water line leak that they had to bipass.