Kat - I'm so glad I don't have to carry a laptop with me as well! Then I really would be using a rucksack I think.
jrf - what a tale of woe :) I honestly don't know who designs handbags (or indeed any other accessories for ladies, as I may have mentioned before) but they need a severe talking to.
The kind of bags which have changeable straps and places to let headphones out of it plus a mobile pocket and couple of zippy pockets are always boarder/skater style ones. Pretty or smart ones never have any useful engineering in and they often fall apart quite quickly - drives me mad!
Maybe I really should start my own accessories range :)