Now I’ve heard about this twice. First I heard it from ST who gave me this advice for a cheap manicure. Then I read it on thisgardenisillegal when it popped up on my google search for “nail brushes for gardeners”.
So here is the trick. Wash hands. Heat up a bowl of olive oil (the site also added a splash of milk) in the microwave for one minute. Then soak hand in it for 10-15 minutes while watching some romantic or shoot em up netflix DVD. Follow up with a tooth pick to push back cuticles and clean under the nails. That’s it!