Nick Clegg today launched a final assault on marginal seats where victories would mark a new Liberal Democrat breakthrough.
He sought to win over voters in Eastbourne this morning where a bitter election battle has been fought between the Lib-Dems and Conservatives.
Seeking to rally support from many still undecided voters, Mr Clegg said: "We have 36 hours to do something different, to deliver real change, real hope, real fairness."
Speaking on the seafront in the Sussex town, the Lib-Dem leader added: "If you voted Labour in the past but you feel let down after 13 years of failure and disappointment; if you voted for the Conservatives in the past but now have no idea what they stand for; if you haven't voted at all or even if today you are still thinking about whether you will vote tomorrow at all, then join with us in our campaign to deliver real fairness, a real difference to Britain."
Setting out plans for radical tax changes, smaller class sizes and reform of the banks and politics, Mr Clegg stressed: "When you put that cross on the ballot paper, it might be a small cross but it will be a big step towards a fairer, better Britain."
Clinching Eastbourne, and a few other Tory seats such as Guildford, would make it even harder for David Cameron to make it to No 10 with an overall Commons majority.
But Nigel Waterson, who is defending a notional majority of just 672 in Eastbourne, said he was "quietly confident" that he would retain the seat for the Conservatives.
Labour risks losing more seats to the Lib-Dems, but with some polls showing Lib-Dem support on the slide, Home Secretary Alan Johnson claimed Mr Clegg's party was now suffering a "slow puncture" and that it was beginning to "grate" on people.
Mr Clegg rejected the criticism as he sought to defend the surge in support for the Lib-Dems sparked by the first leaders' TV debate.
"I want to work very hard and stretch every sinew to reach out to those people who have not voted and persuade them that lending us their support will really help them and their families.
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"Let's hope people come out in large numbers, that's the most important thing of all - that we can restore trust back to our democracy after the expenses scandal."
Mr Clegg's wife, Miriam Gonzalez Durantez, joined him on the campaign trail this morning, praising her husband: "In this campaign he has made the country proud. I very much hope he is the winner of tomorrow's election."
This afternoon Mr Clegg was heading for Durham, where the Lib-Dems hope to win a Labour seat by erasing a majority of 3,274. He will take questions from students before travelling to Sheffield, where he is an MP, for a final speech to supporters.
