easy & delicious salsa

i make this all the time (it's super fast) and a SUPER hit.
mix:
1 can black beans, drained
1 can corn, drained
1 can diced tomatoes (usually one with chiles etc)
add:
juice from 1-2 limes
1 T sugar
chopped cilantro
finely chopped onion (optional)

stir it up and serve with scoop style tortilla chips! it is best if you make it the morning of so that it has a chance to soak up the lime!