Alhumdhulilah, Yes! The blessed month or month of patience or month of Qur'aan is already over. We spent our nights in Prayer, days in Qur'aan, tongues moistened with Dhikr of Allaah and other forms of worship.
Now, the question is how we can sustain the experience of Ramadaan in coming days?
Sustain it by being consistent on some of the crucial deeds mentioned here
#1: Don't miss the Congregation - Save yourself from the Fire!
Prophet (peace and blessings of Allaah be upon him) said "Whoever prays for forty days with the congregation, always being present for the first takbeer, it will be written that he will be safe from two things: he will be safe from the Fire and safe from hypocrisy." Classed as hasan by al-Albaani in Saheeh al-Tirmidhi, 200
#2: Never miss the Sunnah and Nawfil. This is the first wall Satan breaks to break your castle of Salah
Abu Hurayrah (may Allaah be pleased with him) reported that the Prophet (peace and blessings of Allaah be upon him) said: "To this (dead person), adding to his deeds only two light voluntary rakat that you may belittle, is more beloved to him than all of what is in your worldly life"
#3: Get up an hour before Salatul Fajr and pray Saltul Tahajjud - Get all your needs answered by Allaah!
Abu Hurayrah (may Allaah be pleased with him) reported that the Prophet (peace and blessings of Allaah be upon him) said: "The Lord descends every night to the lowest heaven when one-third of the night remains and says: 'Who will call upon Me, that I may answer Him? Who will ask of Me, that I may give him? Who will seek My forgiveness, that I may forgive him?'" (Bukhari and Muslim)
#4: Read the Qur'aan, a page or two at least after Fajr or whenever it will be convenient for you. Don't leave it for next Ramadaan
Narrated Aisha: The Prophet said, "Such a person as recites the Qur'an and masters it by heart, will be with the noble righteous scribes (in Heaven). And such a person exerts himself to learn the Qur'an by heart, andrecites it with great difficulty, will have a double reward." (Bukhari)
#5: Perform Dhikr after Salatul Fajr and Salatul Asr for around 5-10 minutes - Make your day productive!
Prophet (peace and blessings of Allaah be upon him) said: "Whoever recites this (so and so dhikr) with conviction in the evening and dies during that night shall enter paradise, and Whoever recites it with conviction in the morning and dies during that day shall enter paradise" (Bukhari)
Refer Hisn al Muslim "Words of Remembrance for Morning and evening"
#6: Follow all Etiquettes like Etiquettes of sleeping, restroom and so on.
Refer to "The Book of Manners" by Shaykh Fu'aad ibn ash Shulhoob or Islaamic Ethics 24x7 handout
P.S.: You could download and listen to the lecture delivered on this subject entitled "Reverse Gear - Your roadmap for better Post Ramadan phase." by clicking HERE. This lecture discusses why we are able to do certain things in Ramdaan and why we are not able to do it later.
O Allaah! Make us among the worshippers of Allaah and be consistent in our deeds. O Allaah! Make us among the patient ones.
Narrated 'Aisha: The Prophet was asked, "What deeds are loved most by Allah?" He said, "The most regular constant deeds even though they may be few." He added, 'Don't take upon yourselves, except the deeds which are within your ability (Bukhari)