Here are some things you can add to your food besides salt to keep it flavorful!
squeeze some fresh lemon, lime or orange onto your food while cooking
add fresh herbs such as basil, cilantro, parsley, rosemary, oregano
any wines for cooking, balsamic vinegar, red wine vinegar
cayenne pepper, chili powder, cinnamon plus any other salt free spices you like
Check out these!
no salt spice blends such as Mrs. Dashhttp://www.mrsdash.com/
or Penzeys spices- here are some great salt free choiceshttp://www.penzeys.com/cgi-bin/penzeys/c-Salt_Free.html?id=CokVbEXU
If you are trying to cut down on salt don't even keep the salt shaker on the table! Instead have a fresh pepper grinder and some of the salt free seasonings readily available.