Vanity Sizing for Toddlers?

So we all know that women always have a tougher time than men when it comes to finding clothes that fit. For guys, it's simple - if you wear a 32W, 36 L in Levi's, you wear a 32W, 36L in everything. If you wear a Large shirt at Banana Republic, you wear a Large shirt at JC Penny. For girls, some stores have instituted vanity sizing to make women feel better about their self-image by downsizing their clothes. So you may wear an 8 at Old Navy, a 6 at Banana Republic or a 10 at Macy's! Ugh.

Apparently this vanity sizing has spilled over to toddler clothing - but instead of making your toddler feel better about their self image, such sizing makes parents feel like their kids are growing at warp speed or not growing at all!! Case in point - this morning was especially chilly out, so I wanted Rye to wear something warm. I found an Eagles sweatsuit outfit that was for an 18 month old, but it looked awfully small. I put it on my 11 month old child and behold! It fit like a glove. But he still wears (comfortably) his 6 -9 month bomber jacket. What gives!?!