Life in a Tent

 It wasn't originally for sleeping in. It was for crawling inside to draw cool pictures on the fabric with a light pen. But when your bed is by the window, and it's cold outside, and your tent is ON your bed, and you crawl inside to draw and fall asleep and are warm for the first time without a mountain of blankets smooshing down your lungs, then you get the idea that sleeping in tents is not just a summertime activity. It puts me in mind of those "accidents" that ended up being great discoveries... the Ivory soap that was whipped too long in the mixing bowl, but the worker didn't want to get in trouble so processed it anyway, causing a flurry of homemakers demanding the "soap that floats," the inventor who worked diligently toward making a new, improved rubber product for the efforts of World War II and ended up cavorting around the lab with his fellow researchers and their blobs of Silly Putty. What happy accidental inventions do you know about, or which ones have you made?