It's Kitchen Tip Tuesday time over at Tammy's Recipes (see my sidebar). Here's my donation this week:
Sometimes, your local supermarket will have a really good deal on rotisserie chickens. I blogged a long time ago that we found one store that sells them half price after about 8 on a Saturday night.
My tip is to use the carcass (lovely word) the same way you'd use leftovers from your own chicken--for stock! Throw the bird into a pot and add some water (plus spices or onions or whatever if you want), bring to a boil and then simmer for about an hour. If you can,break up the chicken so more of the marrow goes into the water. Then strain it into a jar or two. You might only get about 4 cups of broth, but that's four cups you don't have to pay for (and that don't have MSG or whatever in them!)
BTW, the skin and parts that aren't 'pretty' go to the dog and cats. I'm more popular than ever when I've got chicken for them!