Where do you get your carriers and what is your favorite? I had a moby wrap with my youngest and I loved it but it got warm during the summer. This time around I'm due in July so I was thinking ring sling, but I don't know the best place to buy one at. I want a carrier that is mostly fabric so the weight is distributed evenly and it doesn't hurt my back, so I'm iffy about an Ergo or something like that. I baby wear for several hours a day every day. Suggestions/opinions/thoughts?