Michael Omotosho's grandmother has arthritis, which makes it difficult for her to pull plugs out of wall sockets. Luckily for her, her grandson is an industrial designer.
Learning of her trouble—and finding that even the non-arthritic struggle "with pulling out stiff and fiddly plugs from sockets due to weak hands, sweaty palms, and long nails"—Omotosho designed Plugull, a simple piece of plastic that makes it easy to remove plugs:
The product has been a hit; right now Omotosho's biggest problem is keeping them in stock.
"This is especially useful," writes one reviewer, "for removing badly designed plugs like the Apple phone charger that are difficult to grip."
As you can tell by the plug cutouts, Omotosho is based in the UK. I do hope he comes out with a U.S. version; I believe it would sell like hotcakes.