Just slice and rub raw potato on the stains and rinse with water. Well, they are said to never cross a chalk line. So get your chalk out and draw a line on the floor or wherever ants tend to march- see for yourself. When you get a splinter, reach for the scotch tape before resorting to tweezers or a needle. Simply put the scotch tape over the splinter, then pull it off.
Scotch tape removes most splinters painlessly and easily.
Another tip for scuff on floors is to take a tennis show and rub the sole of the shoe over the black scuff mark and it should come up very easily. You can also do this while you are wearing your tennis shoes.