To a medium mixing bowl, add the avocado, tomatoes, cilantro, onion, jalapeno (add the seeds for more heat), and salt. Squeeze the limes over the other ingredients.
Gently mix everything together until well combined.
Transfer to a serving bowl and serve with tortilla chips for dipping. Store any leftovers in the fridge for up to 2 days.
Notes
The amount of lime juice used keeps this salsa looking just as good on day 2, with no super brown avocado.