Satan has ONE list. All the VERY BAD little boys and girls. All those who tell lies. All those who harm others. All those who HATE. All those who go to church but serve him 24/7 in what they do/say. His is the best list there is on which to be for those who admire TOUGH COMPLETE CRUEL HEARTLESS POWER. They live and breathe it. They don't ask "what would Jesus do"? Rather they ask "what would Satan do" and then they do it. Lists and lists and lists. More and more and more of them. What lists do you have and what lists are you on?
If I happen to have a medical appointment (rare) I'll put it on the calendar. Otherwise no other lists. Iused to have a phenomenal memory (slightly eidetic). Unfortunately, age and depression are eating away at it.
I pay all my bills online. I remember when I was young mom would drive all over town to pay bills (water, electric, phone, drug store, and such). Today, nearly all those places are gone. They've moved their offices to larger cities or out of state.
I talk to God all the time (prayer). I will not judge anyone on their standing with God (not may call as I cannot see their heart).
There is no "gray area" when it comes to God. As you said, if you aren't with God you're with satan. There's no middle ground. No "fence" to sit on. No neutral zone. God doesn't accept apathetic service either (the bible's quite clear on that).