1. Myth: Hard-boiled eggs are easier to peel if you put vinegar in the water.
Reality: This is false. Making hard-boiled eggs that are easy to peel has everything to do with the temperature of the water and, unfortunately, nothing to do with whatever you might add to the water (vinegar, salt, etc.). When your water reaches a boil, turn off the heat and cover the pot for about 13 minutes. Then, quickly submerge the eggs in ice cold water -- the contrast between the hot eggs and cold water will create steam inside the shell (read: space between the white and the shell), making it easier to peel later.