In a large bowl, place scooped avocado and half of the lime juice. Using a potato masher, mash the avocados to desired consistency. Add remaining ingredients and mix thoroughly.
Taste to see if spice and amount of lime juice is just right. Let sit for 1 hour at room temperature and serve.
Notes
Use Ripe Avocados: Don't take the chance of buying avocados the day of and not having any ripe avocados. Buy a few days ahead of time while they're still firm and then leave at room temperature until soft. You'll know when ready when the avocado yields to firm pressure. Also make sure the stem is still in the avocado when you buy it so air can't get in and brown the avocado.
Stay Chunky: Don't mash the avocado too much. Having some texture leads to a more satisfying guacamole.
Add Flavor: Authentic guacamole isn't just avocados mashed with some salt. You want some added flavor from cilantro, onion, peppers and some lime juice. You can add even flavor more with some spices.