First off, I did 10 minutes on the treadmill, did my upper body workout, and then back to the treadmill to get in my cardio.
I put the treadmill on 10 incline and walked got a mile like that at like 3.4 speed. I lowered it back to 0 and started run/walking series for 2 miles... alternating every one minute. For the last time to run, I just continued... I didn't stop after that minute was over as usual. I just kept on! I went a whole 5 minutes (at 5 speed) without stopping!!! That's HUGE for me!!! A whole quarter of a mile!!! I feel so accomplished! I've never done that! Not even as a teen, weighing 110lbs!!! Feels amazing!
I just continued until I had a full hour on the treadmill as you can see on my picture :-)