Here is a fun thing I do on my baby care forum. I have everyone post the high point and low point of their day. It really can give you some perspective about how your day really went. You can do it in relation to your diet or just your life.
High: I watched a co-worker eat a burger and fries for lunch and drooled, but did not cheat.
Low: My 6 month old son has an earache and strep throat.