How do you get baby in a carseat?

DS1 is stil very emotional. I think its just some types of people. DS2 wasnt very emotional as a baby but is now and stil would be happy to be held all day every day if anybody was willing but kindy has helped that a bit.
Just got DD to sleep while she lay on the bed with me next to her! We'll see how long she sleeps for though- hope long enough for me to mop the floors