cilantro lime salsa

1 big ripe juicy tomato, or two medium, or three small.
About 2 tablespoons of finely chopped white onion.
1 tablespoon of finely chopped cilantro.
A little bit of chopped fresh chile. (Add a little and taste, if you want it spicier, add more.)
1/4 of a lime.
Salt

Chop the tomato and add it--juice skin and all--to a mixing bowl.
Add the chopped onion, chile and cilantro.
Squeeze your lime quarter into the mixture.
Add a pinch of salt and taste,

This salsa is all about balance, so taste it and think about whether the sour and the spicy and the savory are all in balance. You can add more lime juice, salt or chile to harmonize the flavors.
That's it. A very simple yet tasty salsa.