EID-UL-FITR is celebrated on   the first day of Shaw'waal, at the completion of   Ramadan. Shaw'waal is the 10th month of the Islamic   calendar. The Eid-al-Fitr is a very joyous day; it   is a true Thanksgiving Day for the believing men and women. On this day   Muslims show their real joy for the health, strength and the opportunities of   life, which Allah has given to them to fulfill their obligation of fasting   and other good deeds during the blessed month of Ramadan.
Sunnah of Eid
Wake        up early
Prepare  for personal cleanliness, take care of details  of clothing, etc
Take  a Ghusl (bath) after Fajr.
Brush   your teeth.
Dress  up, putting on best clothes available, whether new or cleaned old  ones.
Use perfume (men only).
Have breakfast on Eid-al-Fitr before leaving for  prayer ground.
On Eid-al-Adha,  eat breakfast after Salaat or after sacrifice  if you are doing a sacrifice.
Pay  Zakaat-al-Fitr before Salaat-al-Eid  (on Eid-al-Fitr).
Go to prayer ground early.
Offer Salaat-al-Eid in congregation in an open place except when whether is not permitting like rain, snow, etc
Use  two separate route to and from the prayer ground.
Recite  the following Takbir on the way to Salaat and until the beginning of Salaat-al-Eid: 
Allaho-Akber, Allaho-Akber.   La ila-ha ill-lal-lah. Allaho-Akber, Allaho-Akber. Wa-lilahillhamd. 

(Allah is great,   Allah is great. There is no god but Allah. Allah is great, Allah is great.   And all praises are for Allah).
Zakatul-Fitr is due before Eid Prayer  ZakatulFitr

Anas (ra), a companion   of prophet Muhammad (peace be upon him) reported that when the Prophet   Muhammad (PBUH) migrated from Makkah to Madinah, the people of Madinah   used to have two festivals. On those two days they had carnivals and   festivity. Prophet Muhammad (PBUH) asked the Ansaar   (the Muslims of Madinah) about it. They replied   that before Islam they used to have carnivals on those two joyous days. The   Prophet Muhammad (PBUH) told them: 'Instead of those two days, Allah has   appointed two other days which are better, the days of Eid-al-Fitr   and Eid-al-Adha.' (Hadith)