How To: Quick and Easy Homemade Ice Packs.

Your handpacked lunch. Sore joints. Picnics. Having a quick source of cold is infinitely helpful for keeping what you need chilled, and doing it well.

As it turns out, you can make your own - infinately sizeable and shapeable - but just limited how water freezes by adding something with a much lower freezing point, like alcohol....both the rubbing and the, er, vodka kind.

TipNut has assembled a few great DIY options, as well as some excellent packing and energy saving tricks.

Photo: EHow.

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ice pack homemade how-to freezer lunch health