I've got the same questions! Too new here to have much of a system. I'm just glad I get an item finished (life keeps interrupting my creative time) and I'm taking pictures of things as soon as they are done, hot off the press, so to speak.
Then, I guess it just feels finished if I get the item posted on Etsy.
I think I've read that the week end evenings are some favorite times to list......but, I can't remember where I picked up that little piece of info.
I will be interested to hear what others have found in this regard.