From Networx's Chaya Kurtz:

Milk jugs are a pretty perfect material for DIY projects. They're durable, lightweight, they float, they're flexible, and they are ubiquitous.

The best part of making cool stuff from milk jugs is that you don't have to pay for them. I mean, they're trash! But when you're a DIY-er, you know that some trash is a perfect material for upcycling into something great.

Just rinse out plastic milk jugs well before you craft with them, okay? You don't want your milk jug capiz shell earrings to smell like sour milk.

List and captions courtesy of Networx

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  • Milk Jug Lanterns

    To make milk jug lanterns, stick a string of colored lights in empty milk jugs. No <a href="" target="_blank">electrician</a> required.

  • Milk Jug Dome

    This dome with walls made of upcycled milk jugs was built by <a href="" target="_blank">Studio Klimoski Chang Architects</a>, and is called "<a href="" target="_blank">Head in the Clouds</a>". (Leave it to <a href="" target="_blank">builders in New York City</a>.) It is on Governor's Island, and is open to the public for the summer of 2013, June 8 to September 22.

  • Irrigation Tool

    Irrigate just the roots of a garden by poking holes in a milk jug, and burying it. Add water for a slow drip of water to the roots of your plants. It's a perfect solution for watering plants when you're away for the weekend.

  • Mini-Greenhouse

    Plastic milk jugs make great <a href="" target="_blank">mini-greenhouses</a> or planters. If you leave the neck of the jug on, it's a mini-greenhouse. If you cut off the handle and neck of the bottle, you have a planter in which to start plants, or even to let them grow big.

  • Plant Markers

    Cut up a plastic milk jug and label with a permanent marker. It's a free and easy way to both upcycle and get yourself some durable plant markers.

  • Make Jewelry

    Make custom jewelry gift boxes out of plastic milk jugs. <a href="" target="_blank">Read instructions</a>.

  • Halloween Decorations

    Paint milk jugs for cheap and fun Halloween decorations.

  • A Coin Bank

    Save change in a milk jug. Who says a piggy bank has to look like a pig?