Deductions & credits

There is a worksheet in publication 501 that discusses what the IRS considers household support.   In particular, clothing, medical costs, and entertainment for yourself and your kids is not household expenses, those are personal expenses and they don't count for HOH.  HOH is based on the rental value of the home, insurance, utilities, repairs and maintenance, and household food. 

https://www.irs.gov/pub/irs-pdf/p501.pdf