Ok if she's boob fed, the poo shouldn't be a problem.

Lulus best tips for the overtired cherub.

*lights down low, telly off/down
*rug her up in the pram and hit the road
*she may settle in the pram inside (I learnt to sleep on the couch whilst jiggling the pram with my foot)
*warm bath, lights down low. Maybe with mum
*into bed with you
*try not patting, just holding her - my kids got too worked up with patting/rocking
*walk up and down the dark hallway singing
*call the maternal helpline

You can always try the car but then you have to get them outta the seat again..