Geocaching Success! And Failure...

I went geocaching today. I found four of the 6 I went looking for originally. Right as I got back in my car to come home, I got an email alert for a new cache that had just been published. I was familiar with the area, so headed straight there. It was about a 20 minute hike to the location, and when I got there, I just could not find anything! I searched for about 40 minutes, but had to leave to get home for a prior engagement. I am more than a little disappointed that I did not get another FTF. And now I've got a terrible cough from being out in the wind for the last four hours.