It is not hard to keep the Biblical Sabbath, it is however hard to follow the ceremonial Sabbath traditions of the old Jews. They created many laws for the Sabbath that was not given by God. It is very easy to keep.
Touching on the point about the work place, I would rather loose my job then willing sin against God! This is the point, Satan has made it so that people will and do break the Sabbath by saying it is to difficult or I will loose my Job. This is parralled in the book of Daniel in the Golden image, who will you worship mans image or the real thing?? I personally have never lost my Job for keeping the true Sabbath. The Lord will test each one of us, but he always has promised that He will provide. Food, Shelter, and clothing.