Poached Eggs
Always use fresh eggs. If you can't see the difference between the "thick" white and the "thin" white, the yolks will probably break in the pan.
Always deliver the eggs to the pan with a custard cup or large spoon. Avoid cracking directly into the pan.
When using a non-stick skillet cook in no more than an inch of water. If you don't have a non-stick pan, poach in a deep saucepan containing at least 3 inches of water.
Always acidulate the poaching liquid with either vinegar or lemon juice (1 tsp per each cup of water).