Healthcare and college, should remove private interests from them making them government functions, or should at least regulate them, so that the prices aren't hiked up by profiteering, monopolies, patents, etc. Though healthcare has some problems with it that make it intrinsically expensive, like the fact that every time a new technology comes out to detect disease insurance companies are obligated to pay for it, regardless of how expensive it is.. not sure if this problem would go away (either automatically or with effort) by making it a government function or by regulating it, but I think projections of overall national health care costs are a lot cheaper with a single-payer plan for other reasons.