1) Fast of the First Born: all first-born individuals should fast until the evening in commemoration of their thanks for being spared from the plague of the first-born in Egypt. In order to avoid fasting, one may attend a seudat missva, like a Rabbi's Siyum or Berit Milah.
2) The prohibition of eating bread of any type of leaven begins at 10:26 AM on Ereb Pesah. This means that breakfast must be finished by the above-mentioned time. From that time and on, only food kosher for Pesah may be eaten.