To all Hobo/Day bag owners, I'm thinking of getting one (in Oxblood... or Blueberry) as a "for school" bag. I was contemplating a City or a Work, but I particularly like the shape of the Hobo/Day (plus it's not widely counterfeited). I have a few questions: How much stuff can you fit into it, and how many A4-sized books do you think I can fit into it? How about a 13" laptop? Does the single strap place a lot of stress onto your shoulder if you carry a bunch of stuff in the bag? Does the bag start "slouching" more in the middle with use? Any answers/ advice would be greatly appreciated! Thanks!