flu clinics anyone?

Hello everyone! This is my first post here so go easy on me! I have been a nurse for 12 years, mostly med/surg and home health. I currently only work weekends to allow me to stay home with my son and elderly father. I was thinking of doing some flu clinics in the evening a day or two a week to make some extra money for Christmas. Does anyone have any experience to speak of doing this? Any advice would be appreciated!
I did them last season. And I liked doing them. It was flexible and easy extra cash. My schedule this year does not allow it otherwise I would do them again.
I am just starting them, one company is summit and another is mollen.....