I've ONLY had rear flats. Once I had rear flats twice on the same ride (turns out there was a piece of metal in my tire). I learned by asking a girl at my LBS to show me how to change it when I first bought my bike. Then I flatted on a group ride and I made one of the leaders walk me through changing it. The next time I flatted, I was alone on the side of the highway and it was sprinkling. It took me about 15 minutes, but I changed it myself. I felt like such a bad*ss afterward.
She's going the distance...
[COLOR="Red"]
'14 Orbea Orca Dama, Specialized Jett
'10 Giant Avail
'87 Schwinn Cimarron, Brooks B17
Trek mountain bike...don't know what year