Alhamdulillah, we are blessed to have seen the days of hajj again, these special days of which it is said that:
By the dawn; By the ten nights, And by the even and the odd. And by the night when it departs. - Al Quran 89:1-4
Ibn Abbas (may Allah be pleased with him) reported that the Prophet (peace and blessings be upon him) said: "There are no days in which righteous deeds are more beloved to Allah than these ten days." The people asked, "Not even jihad for the sake of Allah?" He said, "Not even jihad for the sake of Allah, except in the case of a man who went out to fight, giving himself and his wealth up for the cause, and came back with nothing." (Al-Bukhari)
Rasulullah (Sallahu Alaihi Wassalam) said: “On no days is the worship of Allah desired more than in the first ten days of Dhul Hijjah. The fast of each of these days is equal to the fast of a whole year, and the ibaadat (worship) of each of these nights is equal to the ibaadat of laylatul qadr.” [Hadith Tirmidhi and Ibn Maajah]
The Prophet (Sallahu Alaihi Wassalam) explained how, “There are no days that are greater before Allah or in which good deeds are more beloved to Him, than these ten days, so recite a great deal of tahleel, takbeer and tahmeed during them.” [Hadith Ahmad, 7/224].
Please see the link to my post last year which describes some beneficial deeds during these days and the act of sacrifice (udhiya) during these days.
You might also find my Ramadan and Eid Planner useful for recording your plans and thoughts for these special days of worship and to plan for Eid-ul-Adha as well as some resources about this month:
My dua’s and thoughts are with the haji’s who are truly blessed to be guests of Allah’s sacred house, may Allah (SWT) accept their efforts and with the Muslim’s suffering in difficult circumstances around the world as the rest of look forward to Eid-al-Adha, may Allah (SWT) bless them with more and better than He has us in this world and the next insh’Allah.