I keep information behind you. My mouths are a plenty, they bind too. The knowledge I hold, Inside, in a fold. One strap for the bold. Jansport, mind you.

First four would be something you use for any work. Next three is something you should think outside of.

I am the brow of the house, looking out through dusty eyes. I am where the summer heat gathers to sleep and where the rain speaks loudest on the shingles. What am I?

I'm bark, but I'm not a dog's sound. I sweeten, but grow on a tree. My scent can unlock Christmas memories. What am I?

Remove the first letter you have the whole world in your hands. Remove the last letter you have my love and life in your hands. Keep me whole and you'll warm your body and soul.