Christ. Rode to work yesterday, all 15 miles of it, and didn't have a problem. Went to ride home and had a completely flat rear tire. Again. I didn't bother changing it and just took the bus home because I didn't want to take awhile and then get home late. I get home and take it apart and find the hole. I patch it easily enough but put a new tube in to be safe and it's ready to go for the morning.
I'm wary though so instead of riding to work I go to the bus station as it's only five miles and I'm flat at the halfway point. I pump it back up and go slowly to the bus station and take it apart (again) when I get to work. (I'm already late so why the hell not, right?) I find out there's a hole in the exact same spot of the tube. WTF. The odds of my tire or an outside influence being the culprit as incredibly low so I think it's the rim. I'm going to take it to the bike shop downtown during lunch and let them look at it because I don't have any experience with the rim and what I should be looking for. The tape looks good, there aren't any spots that are pokey, so I have no idea.
Almost threw my bike into the field when it happened though. I mean, I'm going on almost 8k miles since I got big into biking and I can count on one hand the number of flats I've gotten before last week, and I've got four since Friday. Nothing's physically changed, after all.