Do you use the post office often?
I really hardly ever go to the post office -- maybe once every couple of years. I order stamps online from the postal service (they deliver them with your mail). We also have a UPS store that is only a couple miles from our house and I use that when I need to mail a package. I'm mostly at the UPS store because they are a free dropoff point for Amazon returns.
Do you still send mail through the postal service? Not much but I send cards and the occasional check.
Does your mail come no matter the weather? We don't really have "weather" much, other than heat. So, our mail is very rarely disrupted. Interestingly, until very recently there was no AC in the mail carriers' trucks here in AZ even though it gets as hot as 120 degrees Farenheit in the summer.

In literally the last 5 years, they have been working on rolling out a new truck design with AC.