Contrary to popular belief, you don't need a whole turkey to make gravy. However, you must slow-roast turkey to get good gravy.
I have to admit I have witnessed some pretty seasoned cooks have complete breakdowns at Thanksgiving when it comes time to gravy making. There is just too much going on at that moment; the bird is out of the oven, they are trying to deglaze the pan, the side dishes are almost ready or are getting cold, there are too many people around...let's face it, gravy anxiety is real.
However, all of this pandemonium can be eliminated with a little planning. The secret is turkey wings from the grocery store. Every store has them and they are so cheap. When you roast the wings with celery, onions and garlic, you have the makings of a perfect turkey stock which you will make into the perfect gravy. This can be done months ahead and frozen, taking out the stock when you need it.
On Thanksgiving you can make the gravy while the bird is in the oven as opposed to when it's out, which many of you know is a very stressful activity.