The Shaarei Teshuvah (625) writes: “It is proper to give a lot of charity on erev Succos. Reb Chaim Vital would distribute the tzedakah pushke to the poor on this day.”
Rebbe Chaim of Tzanz said that there isn’t a nicer succah decoration than the tzedakah that one gives on erev Succos.” ~ R’ Elimelech Biderman Shlita
Chag Sameach!