Someone else asked this in a comment  yesterday or so, and it's something I've been tangling with myself, so I thought I'd bring it up here.  What is the best format/file size for uploading shots here?  I'm finding that the same apparent file "size" in Photoshop is much, much bigger than the other program I've been using.  But the image quality seems much poorer on the other, easier to use program.  So is there any guideline a person can use for this, without spending hours trying out different settings to see what finally comes through?  The posted rule of 4000x4000@512kB doesn't seem to hold true on the surface, because I've tried files that were much less than that and gotten the message that the file was too large.  Can anyone help this stupid newbie, or point me in the direction of some kind of tutorial?  Any and all advice will be greatly appreciated!