Survey of Income and Program Participation (SIPP)- This link opens in a new window
Household data especially strong on income and participation in government programs (e.g., social security, welfare, etc.). Tricky to use and access: datasets are large and non-response rates are high. Nevertheless, you can find employment, education and training, program participation, assets and liabilities, migration, fertility, work schedules, child care, pension, property, and time spent out of work.