Ok, please be warned, dumb question from a first time Mum. I'm not long off giving birth and am beginning to think about the real realities of having a baby! If i drive into town with baby in its car seat can I take the car seat (with baby in) out at the other end and pop baby in car seat in a trolley in order to do a supermarket shop? There would be no need for a pram in this instance would there?