To create tin foil takes tons of energy, so reusing it as many times as you can is the only thing that makes sense.

http://www.frugalvillage.com/2011/07/23/reuse-aluminum-foil/

Reuse aluminum foil

Frugal people sometimes get teased for reusing items. For example, you might save aluminum foil to reuse later. While some may find that idea silly, frugal people know there are plenty of ways to put foil to good use.
How have you reused aluminum foil? Here are a few suggestions.

DRYER BALLS:

Wad foil into balls that are approximately 3 inches in diameter and use them to reduce static in your dryer. You can wrap a tennis ball in foil, too.

POT SCRUBBER:

If you don’t like the dryer ball idea, you can wad the foil into a ball and use it to scrub pots and pans instead. One reader, Roxanne from West Virginia, shares: “That wadded-up foil will clean the barbecue grill, or at least take the bigger stuff off so you can clean the rack easier.” You can use the foil balls for cat toys or to scrub rust from chrome, too.

REMOVE WRINKLES:

A flat piece can be used on your ironing board under the fabric cover to reflect heat. This will make your ironing faster because both sides of your fabric will benefit from the heat.

PREVENT RUST ON STEEL WOOL PADS:

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Go there and read. More tomorrow.

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