The Tories have unveiled a "contract" being sent to millions of households in target seats in a bid to capitalise on the "momentum" generated by David Cameron's performance in the final TV debate.
It sets out 16 key pledges with a message from the party leader to voters that: "If we don't deliver our side of the bargain, vote us out in five years' time".
With the constraint of the debates over, Mr Cameron is embarking on a frenetic final week of campaigning across the UK ahead of the May 6 poll as he renews efforts to secure an outright win.
With opinion polls continuing to point to the likelihood of a hung parliament, Mr Cameron used the showdown to renew his warnings that only a "decisive" Conservative victory would lead to change,
Speaking to a rally of activists after coming off stage, he said the contract - which also sets out to dismiss "false" claims by rivals - would help show "we want it more than anybody else".
Titled "A contract between the Conservative Party and you" and adorned with a picture of the would-be prime minister apparently signing it, the document has been mailed to two million homes.
Party sources said they included households in Labour-held seats the party had added to its target list in the wake of a surge of Liberal Democrat support on the back of the opening two debates.
In a personal message Mr Cameron calls for everyone in the country to "get involved, take responsibility and work together" to foster economic recovery, mend the "broken society" and clean up politics. "So this is our contract with you. I want you to read it and - if we win the election - use it to hold us to account," he writes.
Among the pledges included are a right to "sack" misbehaving MPs, halt Labour's planned National Insurance rise, increase health spending "every year" and re-link state pensions to earnings.
Among efforts to "set the record straight" over claims by opponents is a pledge to protect free eye tests and prescriptions for pensioners - an issue Prime Minister Gordon Brown challenged Mr Cameron on forcefully in the debates.