Hazel,
For the 1st 2 mths, my bb was fine wz the sling. She can sleep inside for 4hrs while I shop. But now, she wld cry whenever I put her inside. As if I'm kidnapping her wz the sling. Anyway, do find that she is a bit too heavy to carry wz sling.
As for baby stroller, when she fell asleep, I used to put her in a Graco one. I had that since my #1 but have passed it to 2 BILs after that, n now back to us. The Graco one more sturdy, it has gone to many countries n still ok. But I thot it was a bit old n since bb was ok wz it (meaning din cry when I put her in), I went to buy a Combi one. Sigh... waste money lor. I tried to put her on the Combi one, she wld wake up n cry, then refuse to sit on it. Yah, her cries r like we r torturing her.
With the baby carrier, am trying out all the different carriers that I hv. Sometimes, she wld cry when I put her in. Got to walk walk a bit to "quiet" her. Been asking ard which is a better carrier, so now "eyeing" on the pikkolo one (but hb sure won't let me buy cos so expensive).