Keeping the pebbles down

This year, I am willing to accept that all I need is 45min-1hour uninterrupted time before each class to prep. And that's all I'm giving it. Sub-ideal, but passable and temporary. What I DO have to do is make sure that I make all uploads and other arrangements intermediately after classes as promised to keep my to-do list down. All the tiny little promises I make (usually starting with, "I'll check into that") turn into"burden pebbles" that can get very very heavy with a sufficient number.