Tánaiste Joan Burton has appealed to people to think twice before they cast their vote on Friday.
Ms Burton warned of a FIne Gael-Fianna Fáil coalition which, she said, would be a right-wing administration.
The Labour Party leader also launched an attack on what she called a series of populist politicians whose main campaign is to figure out how left-wing they can be.
Meanwhile, Taoiseach Enda Kenny and several ministers have called on voters to back the Government parties in next Friday's election, saying the alternatives would lead to uncertainty.
Mr Kenny said Fine Gael had a clear plan for the economy and would implement it if returned to office.
Minister for Jobs Richard Bruton reiterated his concerns about the impact which political uncertainty could have on enterprise, while Minister of State Paudie Coffey said entrepreneurship needed to be fostered and claimed his party had the only long-term plan that would deliver this.
In his remarks at a Fine Gael policy launch, Minister for Foreign Affairs Charlie Flanagan said a surge in the number of Independents in the next Dáil would undo much of the good work of the current administration and be very damaging for Ireland's reputation.
Ms Burton was speaking at the launch with Minister of State Kevin Humphreys of the Labour Party's proposals on equal access to education, in the Shellybanks Educate Together school in Dublin 4.
The party is promising to deliver 100 new multi-denominational schools by 2021 – doubling the current number.
It also says it will amend the Equal Status Act to ensure that parents do not feel pressurised to have their children baptised against their own beliefs in order to secure a school place.
Labour says it will ensure that schools prioritise children from the local area rather than deciding on the basis of their religion.
