Last week, LibDem leader Nick Clegg promised to exempt those on minimum wage from paying any income tax.
It is interesting to observe that this is the same Nick Clegg who swapped his desire for a Mansion Tax into the reality of a 'bedroom tax'.
Presumably a big boy from the Coalition did it and ran away.
This week it was Labour's turn, and Ed Milliband wasn't about to let his moment at conference pass unnoticed.
No, he surprised many of us by announcing that if the next government was Labour he would freeze gas and electricity bills for almost two years.
I have no doubt that this is an admirable objective, but will we ever see it? I doubt it.
The energy companies turn over billions of pounds a year and are a very powerful lobby who will put up considerable resistance to such a proposal.
We have yet to hear the Conservative party conference promises but you can be sure that they will be forthcoming, eyecatching and, no doubt, poorly researched.
Here in Scotland we have Parliament promising to renationalise Royal Mail, should the Coalition privatise it.
We have also heard this week an announcement that a future SNP administration will examine the case for lowering the pension age, due to lower life expectancy north of the border.
Harold Wilson once said that a week was a long time in politics, however, these few weeks of party conferences season seem to grow longer and longer with every year.
Occasionally, we find politicians reflecting on promises that have been made, either at conference or in pre-election manifestos.
Who can forget the Nick Clegg video, where he humbly apologised for breaking their promise over higher education funding and tuition fees.
It sounded a little hollow, but at least he said sorry, something that politicians should do more of.
Being wrong is, after all, one of the privileges of being in public life.
Few promises made this week would have appeared just two years ago, in advance of the 2011 election.
What is consistent about these new pledges is that they are intended to capture the mood, to obtain advantage and to get one up on the opposition.
They rarely withstand any reasonable test of scrutiny and are usually little more than fleeting promises, the legality and affordability of which, are at best questionable, in the revolving door of populist priorities.
It would seem that the favourite political weapon of choice is the boomerang, as the same policies come back again and again.
These are the politics of the pragmatists, and also the politics of the personality.
They remain scarce on principles, values and beliefs and owe more to the reality of opportunism.
The party conferences and manifestos produce so many broken promises and so many broken contracts with the voter.
These broken contracts produce broken trust and create the environment within which some 50% of eligible Scots do not cast a vote.
All the major parties are occupying the same ground, with little, visible policy distinction between left, right and centre.
Priorities range from nationalising to privatising and back again, from health being the priority to defence becoming the priority, from 'education, education, education' to tackling the debt crisis, they all seem to merge into a mire of ill-considered policy which could hardly be described as priority.
All political parties should be held to account for the promises that they make, both at conferences and in theirmanifestos.
Broken promises result in a breach of trust, and in the words of that most famous Scottish philosopher, Thomas Carlyle: 'Conviction is worthless unless it converts itself into conduct.'
Fewer promises, more action please.