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.
The citric acid and effervescentaction clean vitreous china. Wait a few minutes, then run the hot water. Don't throw it away. Instead, set it for the year 1972 as the days are the same as the year 2000. The manufacturers won't tell you.