Mandatory Paid Sick Leave
Ever wonder why Mary doesn't stay home when she's coughing up slime? The US is one of the only developed countries that does not guarantee paid sick leave for short or long term illnesses. In Europe, paid sick leave is enshrined in law to reduce the spread of contamination. Research showed that during the swine flu pandemic, 8 million Americans went to work sick, many with 'flu like' symptoms.
BTW, #18 is not 100% true. We pay more taxes than we need to the rest of the year to compensate for this. This is an old odd thing created so people could have more money for Christmas.