I'm always fighting against shelf space in my collection, so decided to do something about games like Augustus where there's far too much empty air in the existing box. I printed off some box art from BGG images onto sticker-backed paper, which I then affixed to a spare Fleet box (no longer needed since I bought the big box). Everything fits very nicely, though I needed to print a smaller manual (and some player aids) as well.
It was all pretty easy to do; I'd say the trickiest part was sizing the box art properly so that I captured as much as possible on the smaller, differently shaped box.
Thought it might be of interest to some of you fighting a similar battle. Enjoy!