HOW TO PACK YOUR BACKPACK:
I don't know if it is my 6 months of backpacking or 9 months working in a grocery store, but I am a packing God. Seriously, is there a world competition I can enter? This video is a few months old (I have gotten EVEN BETTER), but it gives you the right idea. Check it out to see what works for me!
NOTE: I use a front loading backpack - this is key.