Why toss out a perfectly good onesie just because your baby’s torso is a little longer? Anya outgrows her onesies lengthwise before she grows them widthwise so I am loving One Step Ahead’s Room-to-Grow Garment Extenders. You can extend the life of your baby’s onesies by snapping them to the crotch of the onesies. They work with Carter’s, Gerber, Gap, Old Navy and other brands. A ten-pack including two of each snap style costs $10.95.