Are you willing to post your favorite Home Made salad dressing recipe?

I had home made Ranch last year and it was out of this world. I have also had a red dressing; I don’t know what kind it was but she made it and would not give out the recipe. Do you make any salad dressings yourself and , if so, what is the best one? I am looking forward to lots of salads this spring and am growing tired of bottled Italian.