Heading to Ireland and renting a car. Mom and teen son trip, so wondering how driving on a different side of the road AND shifting with my left hand will go--especially in traffic! Will spend some time in Dublin, then head southwest and look round that part of the island, head through Cork, and over toward Waterford, Wexford, and back to North Dublin. Toll roads, are they common? Petrol prices sky high? Thanks for any help!