Just that, really. DS2 is 2 weeks old and i really like the idea of being able to carry him around the house with my hands free. We have a BabyBjorn with good lumbar support that worked well for DS1 when out and about, but i'm not so sure it's as good round the house e.g. If i need to bend over at all, i need to support DS's head with one hand. I know many people swear by slings - will one really be more convenient for me? For info, i'm not bfing and DS2 is a big heavy baby.