Atmospheric science students are taught weather is what you get and climate is the weather you expect. This is why this common skeptical argument doesn't hold water. Climate models are not predicting day to day weather systems.
Wednesday is the day I like off best. Don't get too behind with shopping, housework,etc. Friday is the best day off from work's point of view - an office job where it's the day people are least likely to arrange meetings in.
Of course, when you go out on the weekend, you see people working everywhere you go. Not everyone works a traditional Monday through Friday workweek with Saturday and Sunday off. So that businesses can be open on the weekends, many people work flexible schedules that give them time off on other days of the week.