Here’s a super duper easy kitchen tip (in case you didn’t already know it).
If your salt tends to clump a bit in your salt shaker, simply add a few grains of rice in it! (ok, maybe more than a few grains, if your salt shaker is bigger, but maybe 1/2 tsp). Mix it in a bit, and that’s it!
The rice will absorb the humidity present in your salt, and keep it easier to come out of the shaker.