Are your favorite crafting hobbies knitting and crocheting? Your talent can be put to good use to help someone in need through World Vision's Knit for Kids program. In countries and communities where children need warm clothing, World Vision connects your handmade garments, blankets and hats with children and infants who need them. Your handmade creations could end up in the hands of children in Swaziland, Tanzania or Nicaragua, or in New Orleans or the Bronx. Download a pattern from worldvision.org and knit or crochet a cap, blanket or sweater. Send in your item, and it'll help someone in need.

If you have a cargo unit strapped to the roof of your car, get rid of it. While it may be useful for carrying camping gear for a road trip, it wastes gas when you're not actually using it. Cars are designed to be as aerodynamic as possible, and a cargo unit on the roof decreases your car's efficiency by as much as 25 percent. If you must have a cargo box, consider a rear-mounted one; it decreases your car's efficiency only 5 percent.

Have some old keys in your junk drawer? Did you know you can use them to help the homeless? The Giving Keys, a nonprofit based in Los Angeles, works with homeless people and trains them to make jewelry out of old keys. The keys are upcycled into rings, pendants, bracelets and more. The workers earn an income, and it helps them get off the streets and back on their feet. To learn how to donate your keys, or to shop the collection, visit thegivingkeys.com.