I've been collecting for about 3 months now, filled up a little over half of a long box now, and I've decided I want to sell them off on Ebay and switch to just buying trades. But I have zero idea how to ship comics, or estimate what my shipping costs should be when I post on Ebay. I have done hours of Googling trying to figure out the process of mailing comics, but every single article/video/whatever assumes I already understand something about the process that I do not. So could somebody please explain the process of shipping comic to somebody who has never ever stepped foot in a USPS and has no idea what they're doing. It would be very greatly appreciated.