Recite Surah Mulk to secure Hardships for Whole Month

If the Surah Mulk is recited upon sighting of the moon, the reciter will remain secured from hardships for all 30 days of the month because this consists of 30 verses, and these suffice for 30 days. 

[Roohul Ma'ani, Surah Al-Mulk, pp. 4 vol. 15]