I just got done doing a week of traveling, constantly packing and unpacking my laptop into my laptop bag. It got me to thinking, which way is better for the laptop to be up, while in the laptop bag. Imagine a laptop bag standing up - would you put the hinge of the laptop (where the keyboard and screen meet) at the top of the bag - or would you put the hinge at the bottom of the bag? The vent is near the hinge - so having the vent in a place where it could breathe is probably the best spot. What do you think?