is it possible to track in such detail? Won't it take a lot of time and effort? I don't think its worth the effort.

TFCD = Time for CD
It means that it is an exchange of their time (as a model) for a CD containing the images from the shoot.

Thanks for the explanation.  That is a nice idea, indeed, but the kind of image I thought of doing would not be what people would like to have.  That is, no portraits (a field I have no experience), but people drinking a glass of juice, things like that.

There was a girl in my office that said me more than once she wanted to have her pregnancy development recorded in photos, hinting me she would like me to do that.  It would be a good idea, and have her sign a MR would be a good way to have my time paid, but I didn't want a closer contact with her outside the office, for other matters (which proved wise afterwards, when she was fired...)

Regards,
Adelaide