I haven't bought anything new. I've gotten free hand-me-downs, 50 cent garage sale clothes, and $2 thrift store clothes. And lots of homemade blankets.
The main thing I've been avoiding is clothes with flame-retardant on them. Unfortunately, a lot of clothes will not say if they are covered in flame retardants, and I know most sleepwear is required to have it. I only buy things that say "not intended for use as sleepwear", are organic, or are made by Carter's (who does not use any flame-retardants). I like the baby gap style, but I cannot be sure their sleepwear is not treated with chemicals.
Loving my girl since Feb 2010! vax!