There are lots of charity boxes from different organisations put out on a table in the foyer of our synagogue on Purim. The wardens have attached a note that says that boxes not taken away by the end ...
Why do Shuls put up notices saying משנכנס אדר מרבים בשמחה ? Do we think that a notice will change our mood? And if so, why not put up a notice in Elul saying that the Yom HaDin is coming?