I'm currently vehicle-less. It's somewhat strange.
Yesterday I drove from Rockford back to Peoria and met some friends for lunch at Flat Top Grill - it's like a Mongolian Barbecue place where you put a bunch of uncooked vegetables and meat from a buffet into a bowl and give it to them, and they cook it for you. $10, and I can usually pack my bowl high enough to get three or four meals out of it. It's one of the cheaper ways to eat if you have a place to store leftovers and reheat them, and it's pretty good too.
When I got back out to my bike, I sat down, popped it into neutral, and noticed that even though I was on a bit of a slope, the bike wasn't trying to roll backward at all, which was a little strange. As I pulled away, I noticed it felt very sluggish - the bike didn't want to coast at all. Before getting out of the parking lot, I did a quick look-over of the bike... and noticed a completely flat back tire.