If you ever find yourself in dire need of extra luggage space, then this right here may just be the trick for you: try stuffing your shoes, which admittedly take quite a large amount of space in your suitcase, with all kinds of things. We're talking socks, underwear, watches, accessories, and small gadgets; heck, you may even be able to fit a shirt in there if you have a small torso or big feet.
Speaking of shirts, why not warp your shoes with one of them? That's definitely another way to save on some of that precious suitcase space. Just remember to leave some room for all the nice things you'll buy on your trip!