After completing the Beijing International Marathon this past Sunday, I have learned a few things:

• Pouring Gatorade in your eye stings. A lot.

• When a blister gets really, really big, stretching across the entire width of your foot, and then suddenly explodes, it hurts. A lot.

After completing the Beijing International Marathon this past Sunday, I have learned a few things:

• Pouring Gatorade in your eye stings. A lot.

• When a blister gets really, really big, stretching across the entire width of your foot, and then suddenly explodes, it hurts. A lot.