Ever notice how some travelers carry giant backpacks with too much stuff while others manage to fit enough gear into a small backpack for a long hostelling trip? Here are some videos with tips on packing a smallish backpack without carrying too much stuff.
These three videos are by Alex Berger from Virtual Wayfarer. They cover a European trip, but the technique is similar no matter where you go:
See more packing tips on the Ultimate Packing List.