ATTQOTD: 5 days a week - 1 long run, 1 quality/interval/tempo run, and 3 easy runs. I wish I could do 6, and once upon a time I did, but my body couldn't quite take it - or at least it couldn't back then. I kinda want to try again with a 6th very short easy pace day and see what happens, but then again I also don't want to get injured. The juice probably isn't worth the squeeze at this point.
I also do several calf/ankle/foot strengthening exercises every day, but they don't take much time at all.