National Running Day?

Who knew? Apparently everyone except me. :-) I did manage to make it out for a run today, but this is more because I was feeling tired and lethargic (I have been to four states over the course of the last 18 hours). My inadvertent "National Running Day" workout was only about 5 miles...I was hoping for 6 but my legs are grumpy with me from the 5K last weekend, or maybe it's because I spent this morning trolling around my client's campus in 3-inch heels. Hiss, growl.