The 4th Commandment is far greater in meaning than "don't work". The Sabbath is holy time, and was a spiritual creation. It points back to the Creation and also foreshadows the Rest that will take place at Christ's return. We have the wonderful blessing of getting to rest from our physical labors every week and spend quality time with God every Sabbath.
I grew up in the church in Washington State, where I still reside. I own an engineering and environmental services business and serve in my local congregation by providing sermonettes and sermons.