1) when I am home I rarely wear shoes.
2) Young dogs leave sharp bones on the mat just outside the back door, right where the shoeless inhabitants of the house tread.
Salt water is the best thing since I'm allergic to liquid antiseptics like Dettol. I'm okay just putting it on the skin but if the stuff gets through the outer layers of skin (ie through a cut) I swell up. It's bad.
So here I am with my left foot in a bucket of hot, salty water. When the bleeding stops I'll whack some cream and a a band-aid over the cut. All the tough skin has been pushed back to expose the softer, living skin underneath. The cut is like a 3-corner tear. I can push the removed skin back over the hole. I don't expect it to stay there but it is protecting the now-exposed living skin.
Did I mention it stings like hell? It stings like hell.