I use the Lacoste bag http://storeimages.apple.com/1704/a...icub&op_usm=0.5,0.5,0,0&iccEmbed=0&layer=comp
I have an Ogio bag and love it. I know what you're saying about wanting a backpack that isn't huge. That's why I like the Ogio. It has room for everything, but when it's not fully loaded, it kind of just collapses. It doesn't poke off of your back, like other brands, when not fully loaded. I also have a Swiss Gear bag, which I really like, but it's too big for everyday stuff. Check out Ogio. They're great bags that don't act like balloons or something. Plus, there is a huge selection.
I always recommend Timbuk2 bags.
I use mine everyday. I keep my computer, a book or 2, a notepad, some pens/pencils and some other smaller stuff. I have the medium messenger bag, but there are other styles and sizes. It is one of the best purchases I have ever made. Completely worth the money and will last forever.
DEFINITELY "a casual guy who just throw your **** in the bag and go?"
I'm low profile, carrying a black nylon backpack now but it's just too large, I end up carrying too much as a result.
I hate to say purse but I need something to empty my heavy pockets into along with room for a laptops, paper notebook etc.
It's hard to find that 'manly/cool' everyday bag...