1) The day before the fast is considered somewhat of a holiday. Certain tefillot are omitted in the prayers, such as Tachanun, Lamnatzeach etc.
2) It is a Misva to eat many meals during the day.
3) Anyone who did not do the misva of Kaparot should do so without delay.
4) It is customary to give extra Sedaka today.
5) Many men go to the Mikve on Ereb Kippur.
6) Tefillat Minha is added with Talet and Tefillin.
7) Besides the regular candles that are normally lit for the Holiday, additional candles are lit on Ereb Yom Kippur in memory of departed loved ones. These candles will be available, as every year, on Sunday afternoon in the Shul. A donation is then given, which is considered beneficial to the soul of the departed.
8) The last meal before the fast is called the Seuda Mafseket. This meal is eaten late in the afternoon, and should be finished close to sunset. If one intends to eat or drink something after the meal, he should keep this fact in mind before he recites the Birkat Hamazon, since the fast is accepted upon completing 'grace after meals', (unless one stipulates that he is not accepting the fast prior to praying).
9) When lighting the candles on Ereb Yom Kippur, the woman recites the following Beracha, ".... Asher Kideshanu B'Mis-votav v'si-vanu L'hadlik Ner Shel Shabbat V'Yom Hakippurim." If the woman who lights is going to synagogue by car, she must light before she goes saying the following before lighting: "I do not accept upon myself the sanctity of the holiday with the lighting of the candles, but I will accept it after entering the synagogue." If she is not going to synagogue, the statement is not needed. However, since she is staying home she must say the berachah of "Shehehiyanu" after she lights the candles. Remove leather shoes prior to lighting.
10) On Mosai Yom Kippur, the candle used for Habdalah is lit from another candle that has been burning since Ereb Yom Kippur.