Thanks for the info, and for putting it on a sticky. I love the site and want to make your lives easier!
I tried to think about the first time I uploaded and I guess I was thinking that instructions would already be there. So perhaps you could have something that pops up for newbies, with all of the guidelines, then almost like my Norton, then has a box called "don't remind me of this again." But the button would still be available at the top of the upload page in case we needed to refer to it again. Just a thought! (But perhaps this would involve an immense amount of work to accomplish, so if it is unrealistic, apologies!)
One question: Can a card have more than one category?
And so sorry for all the uploads I did two nights ago without a category.