Recently on the Sunday of All Saints (26 May 2013) --the Byzantine Church observes a different feast of All Saints than do the Latin Christians-- the Eparch (the Greek word for bishop) of the Melkites in the in the USA, Bishop Nicholas James Samra wrote to his people about preparing for the feast of Saints Peter and Paul on June 29. Yes, some Catholics do make preparations for other feasts!
One of the reasons I am drawing our attention to this matter is two-fold: 1.) being Catholic is more than merely following the Latin Church's disciple -- we can learn from others; and 2.) the discipline of those who belong to Christ is more than merely praying, fasting, and almsgiving for selfish reasons, that is, these spiritual activities are to break open our spiritual capacities. Remember what John Paul taught: Christians breathe with two lungs.
The liturgical feast of Ss. Peter and Paul is traditionally preceded by a period of concerted prayer and fasting. These saints --indeed, all of the apostles-- are the pillars of our Church. In times past the period of fasting was significant while today it is much modified. The controlling idea is that before an important feast of the Lord, the Mother of God and some saints, the faithful are encouraged to prepare themselves to receive God's graces in a worthy manner. We prepare by getting rid of sin and living virtuously: corporal and spiritual works of mercy are good things to do.