Nice post from Dorrie Greenspan the other day about saving the ends of mustard jars to go into vinaigrette. I do that too, rinse out the mustard jar with the vinegar to go into the dressing. Ends of mustards also go into baked beans and the dressing for my brother’s roasted potato salad, which it’s getting to be about the right time of year for – new potatoes at the farmers’ market, carrots from last year (or maybe new), & frozen peas. I’ve been known to use the dregs of the ketchup in salad dressing, too, to make it “red dressup”; American French dressing, what my kids called it when they were little, and ate steamed broccoli dipped into it.