Just a quick note- I have an Un Apres Midi de Chien bag called Weekend. It is about the size of a little tripper, I think; the dimensions are about 10" H x 13" L (not sure about the depth). It is very fashionable, IMHO :) You can see it at www.bagshop.com.
Oh, and one other thing ;) I have seen the PPB toddler tote in person and it is extremely cute, but appears wayyy smaller than the pics online! Again, JMHO :) I have a 4 and 1/2 mo. old, and still packing a ton, so I'm not quite at the toddler tote stage anyway! LOL :)
HTH!