I am very happy to share that, b'Ezras Hashem, on Shabbos Shuva 5777, I will be 2,700 days clean.
The significance of this number is as follows. As we know, in Halacha, when it comes to changing a habit, there are (at least) two significant numbers: 30 and 90. For example, after 30 days of saying "Mashiv HaRuach" in Shemoneh Esrei, you can assume you said it, and would no longer have to repeat Shemoneh Esrei in a doubtful situation. Furthermore, if you say the phrase "Mashiv HaRuach u'Morid HaGeshem" 90 times (along with the preceding 5 words), then we also poskin that you would not have to repeat Shemoneh Esrei in a doubtful situation.
2,700 days is 30 x 90.
My Tefila is that, wherever each of us is holding in this journey, that we all continue to stay clean, one day at a time, and serve the RBS"O with Simchas HaChaim every single day!