Wow... today was by far the toughest run so far. It was the warmest (82 degrees) with 62% humidity. That's about 10 degrees and quite a bit more humid than it has been too.
This past week, I worked out for 20 minutes... 90 seconds running, 120 seconds walking, and I did that 4 times. Well, today I didn't feel great when I started out and I hadn't stretched as much as I should have. The first half went ok, but I only got though 1 minute of my third and fourth runs. I think I need to get back to activity every day (except for one) instead of taking so many days off. I understand the idea that a day off to recover is good, but it's one thing to take a day all the way off, and another thing to take it off from going hard, but still doing some sort of activity.
I think this is actually a BETTER idea in many respects. One of the things we used to do when I was in high school the day after a Friday night football game, and to some respects with basketball too, was to jog a bit. That warms up your muscles enough to get the lactic acid out of your body that's causing you to be sore.
I've just gotta get pumped up for next week!