right now i have a black shoulder bag. (see pic) it's roomy and bunjee will be able to grow into it when he gets older and bigger. it's made of black jacquard, dark on the inside and outside and looks like a typical shoulder bag so i've been able to take him nearly everywhere.
i'm also looking into getting the celltei pet on the go messenger bag in black. hubby is too "manly" to carry around my little pup in a woman's shoulder bag.