We should make a point of promoting the giving of Tzedakah in general. After all, Tzedakah is the theme of many of the Mitzvos of Purim (i.e., distributing food portions and charity).
We should increase in giving Tzedakah throughout the month of Adar.
Machatzis HaShekel
On Ta’anis Esther (the fast day immediately preceding Purim), it is customary to donate three coins that are halves in the local currency (e.g., a half-dollar in America).
For Each Member of Household
This practice, known as "Machatzis HaShekel," is subsequently spent on mundane matters… True, we are dealing with the mundane affairs of a Jew, which are undoubtedly in full accord with the Torah and so on—yet that simply cannot begin to compare to the superiority of being spent on Tzedakah.
Begin the Effort Early
We should begin the effort to supply all who are needy with their Purim requirements well in advance—certainly by Rosh Chodesh Adar, two weeks before Purim. We should begin with those in our immediate proximity and continue to include even those found in distant locations—even reaching out to those in a remote corner of the globe. We should ensure that all Jews will be able to celebrate Purim in the proper manner and with "light, gladness, rejoicing and honor"—in the literal sense… and in a manner of "feasting and rejoicing" (Mishteh V’Simchah)—even attaining an unlimited degree of joy.
Hashem Repays Us
Hashem repays us "Midah K’neged Midah" (in direct commensuration with our efforts and deeds), and His reciprocation is in fact many times more than our input. When we strive to provide the needy with their Purim requirements, Hashem likewise increases by providing His blessings—with vast abundance—to each and every Jew during these two weeks before Purim—to the extent that we will need to really search for a destitute Jew in order to fulfill the Mitzvah of Matanos LaEvyonim (donations to the poor) on Purim… We can readily appreciate the great joy that each Jew will then have, this coming Purim.
