For some people I hear it's bottles or pacifiers.
For us, it's swaddlers. Before DS was born we bought 2 sleep sacks (not swaddlers, I know), and 3 Swaddle Me's. He preferred to be tightly swaddled, so we bought receiving blankets. At a friend's recommendation, we then bought 2 Swaddle Design Ultimate Swaddle Blankets. He started breaking out, so we finally used the Swaddle Me's we bought originally, then returned to the store to buy 3 in a bigger size. And I just rush-ordered a woombie
For what products have you had to use trial and error to find the perfect fit?
Re: Fill in the blank: I've spent a fortune finding the perfect ________.
I have a feeling my answer is going to become - cloth diapers.
...but we also have one of every bottle and pacifier on the market.
Ugh, yes, I'm on the hunt for a new diaper bag, too. DH won't love it as he thinks I spent too much on my first one!
Tshirt - totally NBR but I swear the ones available suck!
Have you tried Halo Sleepsack Swaddles! They are by far my favorite! My LO is no longer swaddled, and now sleeps in regular Halo sleepsacks.