work experience help!

I've been and am currently working as a tutor on craigslist for cash, so naturally my salary aren't taxed and my hours aren't logged. I have been hired by multiple tutoring organizations previously but I make less than half of what I earn than when I advertise myself. However, I value experience more than money and I don't want to look like I can't get a job or am not doing anything during my gap year. I am wondering how could I document my hours in my primary application and would this be... work experience help!
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums