New Orleans' efforts to reduce Mardi Gras waste and reuse beads and throws have been ongoing for decades and involve a complicated web of community groups, leaders and businesses. Carnival lasts just a few months each year, but collecting, sorting and reselling beads is a year-round endeavor.

Walt Leger, President and CEO of New Orleans and Company, says if you’re going by the numbers, it should still be elbow-to-elbow on the parade route.

Be on the lookout this Mardi Gras for a little extra star power in New Orleans as Shaquille O'Neal, "True Blood" star Rutina Wesley and others reign as celebrity monarchs in parades. Why it matters: Some will throw custom doubloons and swag.