I believe that the best day of the week is Saturday because it is a day where lots/ many of people including myself get the day off and just sleep in, go out with friends, shop, watch a movie or movies, and have some leisure or alone time. The best day of the week can be any day but Saturday is my favorite day.
Thursday after work . We all like Friday, Saturday and Sunday , so celebrate Thursdays in anticipation of the days immediately to follow that we all enjoy. Granted this is a generalization since those who work on those days will feel differently.