A Big, Roomy Messenger Bag

My favourite trend from SS07 (which I assume will carry onto FW07) is big messenger bags that double as handbags. They are SO useful and cool. I'm on summer holiday at the moment so I've been able to use my non-school-bags. I haven't bought a bag since last summer so I've hit a bag dry spell. Luckily, my mum bought a few bags for herself and I managed to 'borrow' her Marni balloon bag. I'm