Last-minute worries

I'm sitting down at my table listening to the radio and waiting for the car that I put a reservation in for... for more than an hour from now. I *hate* waiting - ugh!

In this intervening time, I get the chance to worry about all sorts of things:

• Do I have my vaccine card? (Need that for both Chicago and Boston to get into expo, get my bib number, and get on the bus in Boston.)
• Do I have my full kit for both races?
• Do I have the proper nutrition (Shot Bloks) and both water bottles for both races?
• Do I have the right additional clothing for the weekend, accounting for the two race shirts that I will get at the respective expos?
• What is the weather really going to be like in both cities? Is it really going to be THAT warm? Will I be able to hit the PR that I'm looking for in Chicago which such a high temp?
• Will my nutrition and hydration this weekend be sufficient for the expected conditions?
• Will there be any timing issues for my turn-around flight to Chicago or my post-Chicago flight to Boston? (I *think* I gave myself enough time for each.)
• Have I forgotten anything that I really need with me and don't want to purchase again?

To be sure, I'll run through this list and maybe a few more questions not yet in mind at least a couple of more times before the car arrives to take me to the airport.

What sort of last-minute worries do you obsess over before you get underway?