I always wonder, in what way I can pack my things so that the weight distribution will be good and I can find it handy to get the things quickly instead of unpacking the entire backpack.

I know that light and bulky stuff should go to the bottom, then a bit heavier stuff to go in the middle, and finally on the top of that should be what you need frequently through out the day.

Is there a benefit to pack it in a Vertical manner? Or should one stick to Horizontal packing sense?

I always wonder, in what way I can pack my things so that the weight distribution will be good and I can find it handy to get the things quickly instead of unpacking the entire backpack.

I know that light and bulky stuff should go to the bottom, then a bit heavier stuff to go in the middle, and finally on the top of that should be what you need frequently through out the day.

Is there a benefit to pack it in a Vertical manner? Or should one stick to Horizontal packing sense?

EDIT: I am considering this in context of 3-4 days of trek.