With over 570 five-star reviews, the Koolspot Outdoor Sun Shade must be doing something right. Its main job is to obviously add shade and privacy to your garden, but that's not all it can do.

It’s also an inexpensive solution, with sun shades available for around $10 to $30, depending on size, on online retailers like Amazon and Walmart.

Back in 1991, the Los Angeles Times ran an article about Israeli inventor Abraham Levy who created the modern accordion-style ...