Holy Sabbath, Postman!
One of my favorite things about not being Mormon anymore is all of the free time! I love that I don't have to get up for church and I don't have to perform the duties of a calling (that I don't even like anyways). I like that I can split my shopping and relaxing time into two days.
That being said, I think a lot of people are keeping the idea of a holy Sabbath alive and well.
For instance, my husband's family gets together for breakfast or lunch every Sunday. My own family has monthly gatherings on Sunday. I work at a school and events are never planned for Sundays, even though there is "Saturday School" and occaisional service projects or field trips on Saturday.
Many employers still pay an increased wage on Sundays. Stores and shopping malls close early on Sundays. Nobody has a Sunday as their trash day (as in waste collection management). Banks are never, ever, ever open on a Sunday. Even the DMV and US Post Office take the day off.
Despite our modern way of treating Sunday as a second Saturday, there is a residual respect for it built into our way of doing business. This might not mean good things for me and my need to get things done, but I think it should still mean something to the rest of the God-fearing world.