Carter's - White onesies with long and short sleeves. DD sleeps in these inside fleece blanket sleepers right now. Great to mix and match. Wish they had brighter solid colors. I can't deal with too many of the cute sayings but overall they have pretty good quality and the sizing works for me.
Old Navy - For style. I like the clothes, just wish the quality was a tiny bit better. That being said, I still like their stuff a lot and the prices can't be beat. I got a lot of socks there as well (triple fold).
Baby Gap - Cute stuff in both the regular stores and outlets and comfy!
Gymboree - Hit or miss, the quality is good but the styles do not consistently appeal to me.
Zutano - scored a lot during a boutique closing. Weird sizing but so soft!
Janie and Jack - LOVE but too expensive. Clearance!
Hartstrings - I get these at the Nordstrom outlet by me or Buy Buy Baby cleareance. Too expensive otherwise.
Daily Tea - Like Harstrings except only at BBB.
*At BBB, I just got "unionsuits" by Baby's Own, really a footless sleeper. LOVE THEM. The sizing runs small, I went by weight. Bought 4, will be going back for more.