Well, I use a counter on my phone for two reasons.

1) To be accountable to this group and to my Wed night recovery group.

2) I really don't have another reason.

I used to watch it like a hawk for the first year or two, now I only check it once a month (on the 2nd). I actually have no idea what the actual number is unless I look....that is a good thing.

When somebody asks me about my sobriety I usually just say, "I have been sober for years"

That makes me feel good.