Zero. I have always been a benefit-less temp/part-time/consultant type of worker at my various jobs. I never had one single paid sick day, paid vacation day, paid personal day, or paid holiday in my life. I accept that I probably never will, either. I never been able to land a full-time jobs with those perks, and I don't even try anymore to find a job like that.
Every time I vacation to WDW, I don't get paid for it, and I make no income that week. I just budget accordingly.