Whee. So, I got to the Y and Jeff noticed I had a flat tire. Completely, totally, horribly flat. Which is funny, because I didn't notice any difference in handling on the way to the Y.
Jeff put the spare on for me (I know the process of changing a tire, but I physically don't have the strength to crack the nuts; yes, I'm a wimp). Luckily, it's a full size spare, but still, tire replacement is a new priority this week. Whee.
I've gotten all my tires at Discount Tire, if you have one of those nearby. They pretty much always end up getting me not only a new tire, but 50k mile warranties on all four tires, for under $60. (This has happened three times, on three different cars. I am just that lucky.) I've found that if you tell them you want the cheapest option, they quote you a price, and you look sort of doubtful, that's when they start throwing out discounts and extra warranties.
Unfortunately we've all been there. I can't think of anything less satisfying to spend money on than new tires.