Polling stations have now opened around the country as voters prepare to cast their ballots in the Presidential election.
We'll know who the ninth President of Ireland is by tomorrow, or Saturday at the latest.
Voters are also being asked to decide whether to implement two constitutional referendums.
Polling stations will remain open until 10 o'clock tonight.
People have probably received a polling card outlining their polling station, but should also bring along photo ID as they may be asked for it to vote.
Everyone will get three ballots - one for the presidential election, with the seven candidates listed.
Two other ballot papers on constitutional referendums will also be given to voters to mark Yes or No - one on cutting judicial pay, the other on whether to give Oireachtas Committees powers of investigation.
Once polls close tonight, ballot boxes will be secured, before counting begins tomorrow. Votes from the Donegal South-West constituency will be counted in the Finn Valley Centre in Ballybofey, while votes from the Donegal North-East constituency will be counted in the Aura Leisure Centre in Letterkenny.
Meanwhile, turnout today is expected to be low.
Islanders on five islands off the coast of the County voted on Monday, and the turnout was below average.
A total of 937 people were registered to vote on the five islands -- Arranmore, Tory, Gola, Inishbofin and Inishfree.
With just 25 people registered on Gola, an impressive 14 made the short crossing to the island from Magheragallon in Gweedore.
Out of a total of 139 people registered to vote on Tory, just 58, or 42p%, cast their votes. On Inishbofin, turnout was dismal, with just seven out of 67 voting.
On the largest island of Arranmore, where 698 people are registered, just over 40% turned-out.