I work part-time but need some extra cash until I can find another part-time permanent job in something of my interest. I found something that pays good and would work with my current schedule, but some of the work would be taking photos and posting on craigslist. The lady I would be working for is 61 years old and she said she’s not good with that. So, would it be ok if I posted them for her?? Also, if it pays cash, would I need to fill out anything or report to IRS??