Don't miss those days! Tough to push yourself when you're smoked, and you know you're likely to get your kid's cold, and it will inevitably make you more sick than your kid was! Don't be afraid to take a break if you need one. If I'm learning anything in my alarm-free world, it's just how much more effective I am when I am well rested.
Aaaand now I'm sick. Awesome. At least we got through the summer with a minimum of disease.