Irish Orders:
Raise education by building Druidic Temples in the British Isles. The people in these isles share our faith and ways of life, but they will be forever stupid unless we build temples to teach them! The temples should be simular to those in Ireland, teaching about our faith, our ways of beer-making, plus stuff like poetry and math.
Offer the remaining Celts in the Isles to join us. We will not attack them to bring them under our influence. We merely offer protection from stronger foes that may lurk, not to mention we offer a superior culture and education, which can be even stronger with their aid. Plus, we have beer!
Begin the wonder "Temple of the Druid" to be located in Dublin. A large giant temple which is extravagant compared to the meager temples located in Ireland. It will proclaim the glory of the Celtic faith, acting as the Mecca for all Irish Celts. It will also serve as the place where all kings are coronated and buried, and an academy for the finest(and richest) Celtic students.
Begin using our sheep for more than food. Shear them every few months, to collect their wool. All wool can be sold in the cities, and better more protective clothing for the cool weather in Scotland and England.