I try to donate 10% of gross income. Rationale: A lot of religious people tend to tithe. Religious institutions tend to support socially conservative causes. To

I try to donate 10% of gross income. Rationale: A lot of religious people tend to tithe. Religious institutions tend to support socially conservative causes. To counter the monetary influence of religious institutions, I need to put my money where my mouth is and "tithe" to socially liberal causes.