jgroup is a LESS mixin that justifies inline-block elements, removes typography issues by reducing the font-size, and adds a 100% width element to the end simliar to micro-clearfix, but not. Look Ma, no specifying margins! Be carful though of removing spaces / HTML compression in production.

jgroup

/* Justify inline block elements for a percentage grid without specifying margins: LESS mixin. See http://www.barrelny.com/blog/text-align-justify-and-rwd/ */

.jgroup {
  text-align: justify;
	font-size: .01px;

	&:after{
	    content: '';
	    display: inline-block;
	    width: 100%;
	}
}