Some really COOL DIY projects

[WiseOwl]

http://www.thesietch.org/projects/solarthermalpanel2/index.htm

http://knowledgeweighsnothing.com/12-practical-survival-uses-for-duct-tape/

http://primedpreppers.com/2013/02/16/charge-cell-phone-with-any-battery/

http://knowledgeweighsnothing.com/convert-aaa-batteries-to-aa-batteries-with-some-tin-foil/

[jimmycthemd]

I like the solar water heater! If you have an old refrigerator around, it'd be really cheap to build.

[WiseOwl]

I like the solar water heater! If you have an old refrigerator around, it'd be really cheap to build.

Thats the one I want to try when we get moved into a new place. Seems legit

[jimmycthemd]

The only kink I could see is cleaning the heat exchanger from the 'fridge so that the water is clean enough to bathe in or wash dishes, etc....