A well-known Tradition of the Prophet (Sallallahu Alaihi Wasallam) has it that the Prophet’s (Sallallahu Alaihi Wasallam) beloved daughter (and Ali’s (Ra) wife), Fatima (Ra), used to perform all the domestic duties with her own hands. She had even to draw water from the well and to carry it home and to grind the corn in the millstone.
One day she begged the Prophet (Sallallahu AlaihiWasallam) to provide her with a domestic servant upon which the Prophet (Sallallahu Alaihi Wasallam) observed, “I will tell you of something that will serve you better than a domestic servant. Recite Subhaan-Allaah 33 times, Alhamdulillaah 33 times, and AllahuAkbar 34 times after each Salaah and on retiring to bed. This will be of greater value to you than a servant.” [MishkatP209 V1 Sahih Muslim]
Another Tradition says, “Whoever will recite after each Salaah 33 times Subhaa-nallaah, 33 times Alhamdulillaah, and 34 times AllahuAkbar, and, at the end of it, the Kalima of ‘Laa ilaaha illal laahu wahdahu laasharika lahu lahul mulku wa-lahul hamdu wa huwa alaa kulli shay-in qadeer’. (There is no Allah but one Allah. He is alone. No partner hath. He Him belongs sovereignty and unto Him belongs Praise and He is all-Powerful) all his sins will be forgiven even if they be as profuse as the foam of the sea.”
Even more easy good deeds you can do: