How can John Howard and Peter Costello all of a sudden, come up with $34 billion in tax cuts over 4 years? Easy - simply decide to reintroduce the practise of indexing the tax scales with inflation to eliminate bracket creep. Something that should be in place anyway and not held out as some benevolent gift.
Don't just index it over the 4 years, commit to full indexation in perpetuity. That would be some worthwhile tax reform that would actually benefit workers, business, society and the economy generally.
Looking forward to see what the ALP comes up with, tax-wise.