Legs, legs, legs

This week is all about legwork. Tuesday I ran 5K, which was much harder than it should have been: I was really struggling at times, which I think might be because I had had 20oz of water about 30 minutes before I started.
Yesterday was lower-body day at the gym, which I got through without too much struggle. Then I took the dogs for a 3-mile walk in the evening.
Today I am riding my bike between work and the gym, and doing my upper body work while I'm there.

I am feeling like I need to get a lot more cardio/aerobic exercise in, and so I'm trying to do a little bit every day.