The average American produces about four pounds of trash a day -- or more than a ton of trash per person each year. For 48 hours starting on May 17, Roble residents participated in a zero-waste competition that challenged them to keep all the landfill waste they produce -- from gum wrappers to plastic straws, chip bags to fruit stickers -- in 16-ounce Mason jars. The rule: For those two days, each participant must put all his or her non-compostable and non-recyclable waste into his or her Mason jar. At the end of the 48 hours, the three students with the least amount of landfill waste in their jars won their choice of a water bottle, a plush Roble bathrobe, or a gift certificate to a local sustainable restaurant. Watch the inspiration behind Roble's zero-waste challenge.