Sheikh Al Wazaif mentioned this in his lecture in Ramadan that one must take the utmost care of the night of Eid (Chand Raat) and the day of Eid. Mistakes made on the day or night of Eid and most often huge sins are planned. Do not waste the entire month's hard work, prayers, worship, fast kept in the hot weather and all the earned good deeds. Just take care of this. May Allah Almighty protect everyone. Ameen!
On this, day and night Satan plans specifically to make Muslims waste their good deeds. He steals these deeds from them under the guise of things like shopping, films, television program and other stuff that is wrong. Save yourselves from falling into Satan's trap.