Clothes ... Lefty??

The Little One is growing out of many of his clothes, and it's reaching a point that has us scratching our heads. As I keep saying, he's growing faster length-wise than he is outwardly. At the doctor's office, still technically a full week from turning a full 4 months, he was 27 inches long at his '4-month check-up'. I keep reading different things online, including other parents' random blogs like mine, and the average length I keep seeing is 22-24 inches.
The element that causing us a great inconvenience is that clothes-makers seem to go by these averages as well. Kole is wearing clothes that, on their tag, are for 6-9 month olds. And if you read the fine print of the tag, is actually for babies 24-27 inches long. So ... as you can see, Kole is about to out-grow "9-month old" clothes.
After the baby showers and all the initial infant stages, we were on clothes overload. There are some stages where he never had to wear an outfit more than once or twice because he had so many to choose from. Now?? We keep rotating and washing the same 5-7 outfits for every-day wearing, plus the PJs with the little footies for sleeping.
Kathy's been doing lots of shopping lately, but is finding that when babies get to that 9-12 month stage, most are at that crawling/walking stage and everything is pants and tops. Nobody really makes onesies with the snap-crotch at that age. But, here's Kole now needing clothes that most clothing makers are sizing 9-months and up.
It's still far from an issue that is at critical stage - but at this point it's on that border of frustrating and slightly amusing. More of the frustration is aimed towards the clothing makers who have determined that 4-6 month old babies, by average, are about 12 pounds and 23 inches. So, his wardrobe has been greatly diminished as a result.

I've also noticed a recent trend, watching him handle a rattle or little toy. With his right hand, he seems to only have control over it for a couple of seconds before losing grip and having it fall out. But with his left, he sustains a grip on it for 3 or 4 or 5 minutes, with vigorous shaking and constant motion. I don't know if this precludes him being a lefty, but he has shown some early left-hand dominance. Also, while being fed a bottle, I'm seeing some consistency in trends, though it could be the way we have him positioned in our arms. But, his right hand will sit idly on your hand, or the bottle, while his left flails wildly and happily to his side, rubbing his head, and gripping certain things around.
These are just things I've noticed, and not suggesting that either one of us thinks he'll be left handed or whatever. Just interesting observations.