I know I already have a great one, but I decided to try a new one, got it from Family Feasts for $75 a week!
1/2 c olive oil (it called for veggie, i used Olive)
1/4 c balsamic vinegar
1 clove garlic, minced
1 t dry mustard
1 t salt
1 t sugar
1 t parsely
Put all ingredients in a pint container with a tight lid (remember, you're going to shake it!) Shake Well. Store, tightly covered, in fridge up to 2 months.
I needed a marinade for some chicken on Thursday, so I tripled the recipe, smells wonderful!!