Anyone jog/run intervals regularly?

So glad to have found this topic. I'm doing the C210K training and was just getting so bored with running for 45-50 minutes. Glad to hear people do this during a race too! I feel like I've built up my endurance, but I think I would love to do the change up from time to time to work on my distance. I'm glad to hear people consider this 'running' too--stupid I know!!! In my mind if I don't run the 30minutes straight-I'm not really running-but I guess that's viewed differently and I can change my mind on this thinking now! Whoo hoo! :-)