Money is the paper that gives one person the power to make another person do almost anything (at least some) that is why it’s so important that we try not to use it for Shabbos. For if we don’t use currency for this day we know that those we meet and things we do are truly dependent on a higher authority. Even though we should realize that without G-D money has no power, just like breathing in air without oxygen is futile, not using monies brings this point to life. Shabbos should be a time to think about the things that last past the dollar in our pocket such as our relationship with G-D and the loved ones he has brought into our life’s.