That's today, and here it is...
The process seems to be that this should be 3 times, twice in Hebrew and once with targum onkolos (the aramaic translation of Onkolos).
The source of this custom is Reb Menachem Mendel of Rimanov, one of the four primary disciples of the Noam Elimelech. The halachic works say that it is a good thing to read Parshas Hamon everyday. (Tur 1; Shulchan Aruch, Orach Chaim 1:5; Aruch Hashulchan 1:22; Shulchan Aruch HaRav 1:9).
Shevet Mussar says that the segula of Parshas Hamon is when it's read "shnayim mikra ve'eched targum" and Siddur Segulas Yisroel says to say it with the cantillation (trup or the musical Torah notes). Mishna Berura quotes the Talmud Yerushalmi in Brochos that says one who says Parshas Haman will not lack sustenance, and quoting the Taz says that reading it alone isn't sufficient, but one has to understand from the reading that our sustenance come about through Divine intervention. By reading the account of how Klal Yisroel was sustained by Hashem in the desert for 40 years, we ingrain in ourselves that our livelihood comes about only because Hashem wills it. …It's not a magic incantation but an affirmation of Hashem being the "Hand that feeds us".
A wish of great parnossa to everyone!