Yesterday, on speed training (intervals), I ran 6x400 meters (with 400 meters jogging in between), and I managed to do every single fast lap within 1:30. In fact, the last two laps were my fastest ones. This may not be a huge deal for someone else, but I was quite satisfied. (I still don't like intervals though.)

Also, I found a nice high school track relatively close to our place, and I think I will do my intervals there from now on. The track surface is better for my legs (shins and knees), and the 400 meter distance is exact. The down side is that I have to drive almost 2 miles to get there.