Shopping Buggy - An enclosed shopping buggy with individual "drawers" for divisible purchases: think groceries vs toiletries (pharmacy products) vs consumer goods.
The top compartment can be designed to either access the top drawer or be shallower and act as a lockable compartment into which the user would keep their wallet, etc.
My target market is elderly ladies who set out to do multiple purchases in a single day, thus needing ample storage in an mobile, stable unit and somewhere safe to store a purse.