I currently qualify for 4 from your list. One exception is Sprinkler. My house was built in 2005 and do not have a sprinkler system. I was surprised to see that given the apartment I used to rent had a sprinkler system. I looked for options to install new sprinkler system in my house- but found it to be high cost and hassle to install it in an existing house. So did not do it.
Do any of you have experience of installing sprinkler system in an existing house?
