Originally enacted for religious purposes, a "blue law" is a law created to prevent people from working on Sunday in order to observe the Sabbath. Although the impact of blue laws has been drastically reduced over the last few decades, many states, including Texas, still have several in effect. If you've wondered why car dealerships are required to close one day a weekend and alcohol sales are severely limited on Sundays, blue laws are the answer. Read the full post here to learn how current blue laws may impact your weekend plans.