I realized I posted above in the wrong thread. It's confusing have 2 "healthy" threads at once. I think I need to go read the bacon thread in entirety once again and start a thread about chocolate to offset these issues.
I use very little (if any) oil in my salad dressings any more. If I do use oil, I go for one with lots of flavor (sesame, garlic, herb flavored olive oiles, truffel oil, etc). I use various versions of this recipe. I haven't purchased salad dressing (with minor exceptions) in about 10 years.
OIL - FREE SALAD DRESSING
1/2 c. balsamic, champagne, red wine or other vinegar
lots of freshly ground black pepper
a pinch of salt
a scant pinch of sugar
2 cloves garlic or shallots finely chopped (2 tsp.)
2 tsp. Worcestershire sauce
1 tbsp. Dijon-style mustard
2 tbsp. fresh lemon juice
1/4 c. water
Fresh herbs as desired
Combine all ingredients and mix well.
VARIATIONS: Try different types of vinegar, for a creamy dressing, add plain non-fat yogurt and blend well. Experiment with adding tahini, soy sauce, tamari, orange juice horseradish, salsa, tobasco - I consider all of these items "freebies".
If you want to be bad, add gorgonzola ti the dressing and put walnuts in your salad. 
(And THAT, my friends, is why I have an extra 30 pounds on my - that and the fact that I'm 45 and went through hell recently). Of course, if I didn't do the small things I always do, I'd probably be as big as my couch by now! I have to be graateful for something.