Turkey anxiety is so funny. Everyone gets it the first time, and usually afterwards they're like "what was the big deal?

" I think roasts are harder to cook correctly.
For decorations, keep it simple. Actually, I've never been to a thanksgiving where anyone bothered with decorations other than their nice serving platters, maybe some extra candles around the house. Most people just care about FOOOOOD, so if it's a budget concern, I wouldn't put yourself through the hassle of purchasing special turkey decor.
As for the food, you've gotten some great tips already. A few things I want to add are:
**if brining a turkey, be sure to not buy a turkey that already has a heavy salt solution injected into it. And be careful about using the brined turkey drippings for gravy...it might work, but you might also end up with salt lick gravy.
**yes, get a thermometer. DO NOT rely upon one of those little pop up deals.
**But more important: stuffing safety! So many people don't realize that stuffing is the culprit behind a lot of turkey day food poisoning. If you cook the stuffing in the bird, make sure it's cooked to at least 165 degrees. So you may benefit from both a meat thermometer and an instant read thermometer.
**If you don't have double ovens or a toaster oven, see if you can borrow a friends or family member's toaster oven. That way you can be heating more than one thing at a time.
**For things that can't be made ahead, see what parts can be done ahead. Heck, sometimes I assemble spices for recipes together ahead of time in zip lock bags.
**And this may be way more anal than some, but the last time I had to do a the entire t-day meal, I actually came up with a spreadsheet for what needed to be done at certain times to get everything on the table at a certain hour. Sometimes when you have 10 things going at once, it's easy to forget to do this or do that, and suddenly you're completely flustered. Stupid things like realizing you forgot to preheat the oven can push your cooking schedule back 30 minutes. And let me tell you, it was eye-opening. I had planned to get up around 7 am to start, but after I did that spreadsheet realized I had to be up at 5 am to get it done. Yikes!
