Quoting ~Elliott's.Mommy~:" Im new(ish) to the whole baby wearing thing. I just got a sleepy wrap about 2 months ago but Elliott ... [snip!] ... buy any at the moment. I want a ring sling or an ergo but craigslist rarely has them and they're expensive buying them new lol."
Stretchies like the sleepy are really only good until about 15 pounds. They get saggy and they're not supportive enough.
Have you looked on facebook for a local group for your area? I've learned so much being in fb groups, lol. Plus it's nice because they'll usually have meetings so you can check out other carriers and what not to see what you like (or what works for you) before you buy.
This is the facebook swap, you can find some good deals on there
(and no crotch danglers allowed, lol).