I use a Post-it pad for my micro-tasks, 1 page per day. At the top of the page I write today's date. For each todo item I draw a little checkbox, and when the task is finished, I tick the box. At the end of the day I cross over any unfinished tasks that are not super-important, and write a big "OK" at the bottom of the page. This physical act of confirmation gives me a sense of accomplishment. But then I just throw the page away to get a clean slate for tomorrow
I don't want to get obsessive about it. I usually don't have more than 5 or so microtasks written down at any one time, to make it feel more manageable. I often do the tasks out-of-order to mix it up. It's better to do
something even if I'm procrastinating on something more important. Also, if I get stuck e.g websurfing when I know I should be doing some work, I might as well make a task out of the surfing, e.g to visit a certain site or forum, or read a blog. If I'm tired I might even make it a task to take a nap
What you decide to do is not as important as the fact that you first
decided to do it, wrote it down, and then actually
did it!