Inspired partially by Benjamin Franklin's schedule (http://www.flickr.com/photos/nickbilton/3779169741/) and his "what good shall I do this day?" beginning of the day question, I created an "Awesome" list in which I put just that: ideas of good (or awesome) things I could do in a day and that are not typically part of my schedule.
Each idea has to be simple enough to not take too much time and to be able to be accomplished within that day. Instead of thinking of a new idea every morning, I just add ideas to that list as I think of them and I don't put any due dates when adding them --- so then every morning, I look at my "Awesome" list and decide which of the ideas I will do that day and change that idea's due date to "today." (You may prefer to schedule it in advance, but for those who'd like to do it like me, I would suggest making a Today smart list in which you keep track of all the things to be done today.)
Optionally, if you don't think you can fit it in your schedule in a daily basis, you could do it once a week. Or if that also results too difficult, you could just look at the list of tasks you've done by the end of the day, and select one that you think was really good and tag it #awesome. You could create your "Awesome" list based on that tag to keep track of the good/awesome things you're doing.
Hopefully, doing this can make your day a lot more special or fun and help you keep motivated.
Posted at 11:02pm on February 13, 2012