So, it turns out a hunk of my images are .gif's, which waste lots of space lots and lots quicker than .jpg's.
That is bad.
So, I will be spending a crapload of time clicking that little "File > Save As > .JPEG" on my laptop at New York, assuming I will be internet-less.
The good news is, though, I'm delving into some old images that I'd saved earlier! Yippee!
From an old, old issue of Spider-Man Loves Mary Jane, back when Sean McKeever and Takeshi Miyazawa were working their magic.