I would like to purchase a sling tomorrow for my 3 week old. I have a 2-yr-old that is VERY active and I need to get rid of my huge travel system that I am carrying everywhere I go. I bought an ERGO carrier with infant insert but it is too much work for me and I am burning up after 5 minutes of using it. I would like a sling that is easy to nurse in public. Any ideas? Websites?