I've been posting on healthcare a lot, because it's interesting, I think.
A lot of people have talked about removing the tax exemption for healthcare (which I can't decide if I support - I suppose I should, but I tend to think healthcare is worth having a lot of) or selling insurance across state lines. There are other methods, however, which seem to be more unequivocally good
I have two ideas for healthcare costs.
Firstly, tax the hell out of trans-fats. They absolutely carry massive negative externalities (in terms of price of insurance). Cigarettes could use higher taxes as well. Alcohol is another prime candidate. This a) reduces preventable disease rates and b) helps fund the healthcare required for treating everyone else. Pigouvian taxes for the win.
Secondly, there are a ton of procedures which doctors are not required for and nurses are perfectly capable of. Paying a nurse is much cheaper than paying a doctor. It seems reasonable to allow some more procedures to be done by nurses. This would be cheaper for everyone.