I Hate Infant Clothing Sizes (Rant)

As most of you know, Elizabeth is very long and lean for her age. We measured her a couple of days ago and she is 28.5" long. Her weight is around 17.5 lbs. Well, 12 month clothing starts on average for a length of 28" (Length can very a little bit depending on the brand). However, the weight is up at around 20lbs. So right now we are having some issues with getting things to fit. She fits 12 month onsies fine, and they don't look baggy on her, however, two piece outfits are another story. 12 month pants will fit, however, they are baggy while 6-9 month pants fit, but they are a little on the short side. AARRGGGGG! Right now I'm refusing to buy any winter clothing until it starts to get cold. Hopefully by then, we'll have a better idea of what she'll fit in.