1. Butter wrappers

Save the wrappers from your butter sticks! Store them in a container or Ziploc bag and take one out to grease your cookie sheets and pans instead of using cooking spray.
2. Razors.

According to EPA, about 2 billion disposable razors end up in our landfills each year. Do your part to reduce this by extending the shelf life of your razors. Rinse your razor after each use and give it a quick blow dry with a hair dryer. A dry razor will stay sharper longer and will not rust, so you can get up to twice as many shaves with each blade. When your razor is past its prime, use it to shave pills out of your sweaters.
3. Vegetable bags

Fill these nylon mesh vegetable bags with natural fibers and fabrics like cotton and wool and hang them from a tree to provide great nesting material for birds. You can also put things like string, absorbent cotton, feathers and animal hair inside.
4. Shower curtains

Whether you are updating your bathroom decor or you have a shower curtain that has seen better days, that old shower curtain is still of great use. Shower curtains are a great way to think outside the box when it comes to reusing household items. They can be used as table coverings for picnic tables or as a cover when painting. In the winter, you can save scratching your windows by cutting the curtain to size and placing it on your windshield overnight. Pull it off in the morning and your windshield is instantly clear.
5. Old t-shirts

There are an estimated 13 million tons of clothing in our nation's landfills. A staggering amount of donated clothing ends up there as well. Instead of throwing away old T-shirts, you can reuse them. Cut the fabric into squares the size of baby wipes to make reusable cleaning cloths and dryer sheets. You can also cut the sleeves and neck out of the shirt and cut strips at the bottom hem and tie them together to make reusable shopping bags.
6. CD spindles and cassette sleeves.

Reuse old cassette sleeves and CD spindles to store coiled cables and make clever gift card holders. Make a decorative insert and place it in the cassette with a gift card. This will save you the expensive greeting card and wrap your gift in a unique and memorable way.
7. Cardboard beverage carton

The cardboard box that holds a four or six pack of your favorite beverage can also be used as a handy condiment container for your next picnic or outing. Decorate it with scrapbook paper or paint it and store tomato sauce, mustard, cutlery, napkins, etc. in the individual compartments.