Of exhausion and more..:P (not actually exhausted)

I was wondering why I am feeling so tired even after having breakfast now. Well, I now know why. I did some extra cardio(aerobics) yesterday evening as I was bored. Even though it is very tiring it is good.
And then, about my yoga practice, the thing I like the most these days is my Reebok yoga mat, it really peps you up to workout. And I have started using this mat just 2 months back. But before this I would do it on a carpet sort of a mat which is also good. But this reebok mat comes with a yoga booklet which explains as to how this mat gives you the maximum benefit of the workout. Yoga uses body weight itself to reduce weight. And thats probably is one feature that the mat enhances..