I have started adding at least one dollar to my shipping for a handling fee. When I started on Ebay, I used to recycle boxes from Walmart and beg for bubbles and peanuts. But now I package in new/clean boxes and pouches. It is part of the professional image that I wish to project. I purchase packaging, rent a post office box and I have to drive to the post office. All of these expenses have required me to tack on a handling fee. About once every 6 weeks I will offer my product with free shipping. It upsets my competition but it goes over well with my customers. My business is successful because of repeat customers and I do my best to keep them happy and feeling like they are dealing with a competent and honest business person. I don't feel guilty about the handling charge.