Big and Tall Store For Babies

My baby was born at the top of the height percentile. And now she's off the charts. Couple that with the bulk of reusable diapers and I can't get all-in-one outfits that are long enough. She was wearing 6 mo. at 3 months, 9 mo. at 4 1/2 months, and now 12 mo. outfits at 6.  I had joked months ago that at some point she was going to catch up to her cousin (the source of all our hand-me-downs), who is 13 months older.  That day may be coming sooner rather than later.  At this rate they'll catch up when my baby is 13 months old.  That's only 7 more months of hand-me-downs.

I'm sure plenty of mothers have questioned the sizing of infant/baby/toddler outfits.  I have a variety of brands in the "12 mo." size that to me look like they vary from actually fitting a 3 mo. old, to a traditional 12 mo. old.  Why don't they just size it by height.  I could walk in to any store and just buy the outfits that would fit my tall baby by her height.  Instead I go with a measuring tape in my purse and I measure from collar to crotch.  Often, the length is right, but her body is swimming in the ill-fitting outfits.  And the arms and legs are too short.  What short limb, long torso, stout babies are these outfits being made for?

Pants and T-Shirts would be great.  But she's still so little and rolling around, not yet crawling, and I don't want her belly exposed all the time.  Plus the nuisance of taking off and putting back on a pair of pants at every diaper change is too much, especially when I'm trying to prevent her from waking.  For all these reasons, I love the all-in-one outfits that snap at the bottom.  She's only 6 months old after all, I don't need to dress her like a little adult.