The Day After Purim
On the day following Purim, the Porissover would call the poor to his home early in the morning and distribute money to them. He gave as his reason the following; "Because it is a special mitzvah to make gifts to the poor on Purim, everyone neglects this mitzvah on the next day; and I deem it a excellent deed to perform a neglected mitzvah."
Source: Derekh Zaddikim
