From Bryan Miller over at NPR, Stop the Madness: Make Your Own Salad Dressing.
Making your own salad dressing is embarrassingly easy — and cheaper than buying it in the store. Of course, preparing vinaigrette every day could become a nuisance, especially, if, like me, you often forget to make it until the last minute when hot food is already on the table. My solution: Make big batches of the stuff and store it in wine bottles or mason jars.
I always make my own dressing, and like Bryan I often wait until nearly the last minute. Lately I've been better and whip it up while I've got a down minute during dinner prep, like right after I put something in the oven. Then it's ready to go and all I need to do is pour it over the salad when the time comes. I heartily recommend making your own dressings, it's so simple and so much tastier!