Can anyone help? I would like a bag I can put on my shoulder that can fit my work laptop, a notebook or 2, pens and a mouse along with a thermo lunch bag. I just have one from target that is wide enough to fit the square Rubbermaid containers with the red lids (descriptive, I know lol). I also will need to be able to fit shoes in the winter. I prefer sturdy, so it doesn't flop when I set it down. It does not have to be anything fancy...just cute and a decent price. Anyone have any ideas????