What Daily Planner(s) you guys use? FranklinCovey? DayTimer? Levenger? Palm?
I’m currently using my Palm Datebook–it works okay, but not great. So I get a Levenger Circa Agenda. That’s a little better, but still not great. Any suggestions? 
Plan…ner?
I play things by ear mostly. If I forget something, eh, I’ll do it tomorrow.
But, to answer your question, little pieces of paper left neatly inside my wallet near the small bills is what I use.