Getting and Managing Affiliates

Hi all
I’m in the process of making my site which in the self-help genre. I’m new to all of this so I was just wondering about affiliates, could you please advise on the following:
1) What are good free ways of finding affiliates to promote my products?
2) If a product is between say $10-$20, what percentage of revenue would be good for getting affiliates?
3) I’m starting up so have no money at the moment(hence why affiliates are an attractive option). When would affiliates be paid? At the same time as each sale? Or monthly? What about handling customers refunding products?
4) My initial aim would be to achieve around 30 sales per week. How long do you think it would take to achieve that level through the use of affiliates?
Thanks for reading!

See original post by heidern