For me, the big one is HRT. I have been waiting all my life to be recognized as female, and now that I have started the process I have literally done everything I can and still it seems hopelessly slow. I'm out to my Mom, I'm out to my kids, my girlfriend, her kids, even my boss (although not out to my workplace/client). I have a pretty well stocked wardrobe with slightly more clothes than my girlfriend has, fun stuff, every day stuff, and business attire, all (mostly) appropriate to a woman in her late thirties/early forties. I have a facebook profile for those who know the new, authentic me. I visit Susan's all the time, where I can interact as the real me.
HRT is the one thing I can't rush. Between my therapist wanting to go the standard WPATH three months and the best endo in my city not having an opening until January 20, I'm going out of my mind. The tracker, the countdown is so I can see that I am getting there, that I am making progress... because otherwise I'm afraid I will break down. The dysphoria comes in waves, but each time it comes back stronger, it seems. It's gotten to the point where I don't even look down there anymore. When I get home, I climb out of my drag work clothes and into proper clothing as quickly as possible, and try to avoid seeing my face unless I'm going out and need to put makeup on.
For me, it's not about remembering the dates behind me (I just realized I never even wrote down the date I came out to Mom)... it's for marking progress toward a goal.