M.E.S. wrote to mention that he likes the many do-it-yourself ideas at the Penny Wise – Homemade and Handy web page.
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Lynn G. sent this news article from England: Carpenter Builds Incredible Egg-shaped Treehouse Hidden From View on Crown Land
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R.W. sent something of interest to homeschoolers: University of Minnesota Launches Review Project For Open Textbooks
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Richard H. liked this at LifeHacker: DIY Gravity Water Filter.
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This has been mentioned once before in SurvivalBlog, but bears repeating: Making a 45-day emergency candle out of a can of Crisco. (Thanks to Jeff R. for the link.)