Hi, sorry for another ridiculous post about 11inch vs 13inch 2011 Airs...but I am becoming obsessed and should really just buy one instead of taking months to decide and finding Ivy Bridge models are already out haha. Here is the Q, say I had a day at uni (Americans call it college?) from about 9 to 5 ish. 8hour day. I would only need to be using the Air for about 6hours or so of this day. This would be outside the reach of the 11inch battery, if I wanted some decent brightness, wifi, word, safari etc. Because of that, I would chuck the 35watt charger thingo in the bag (charge it over lunch or something), anyone know what that thing weighs? Because I was thinking that maybe the 11inch + its charger (1.1kg + charger) is going to weigh more than a 1.35kg 13inch without its charger. And also end up taking up the same amount of space as a 13inch Air. Because the 13inch battery, at 7hours give or take (with just word and internet) would last me my whole day, no matter what (no need to take the 50watt charger). Further question: Is the 13inch charger bigger or heavier than the 11inch 35watt charger? Thanks!