I love DS (4 months) napping on me, but I can't get anything done, obviously, and DD (3) needs me! He will sleep in a sling or while being cuddled, but if I put him in his cot he only stays asleep ten minutes. I don't find I can do much with him in the sling, although can play with DD or walk the dog.
What do others do with babies of this age? He hates the car, by the way.