I've been wrestling with the same issue, more or less. But what I've decided is that its ok. Maybe this is my idiosyncratic view, but I've started to think of GTD as a system for remembering important things or things I'm likely to forget. But a lot of my ordinary life I can do without prompting. I don't need a next-action to know to eat breakfast in the morning, feed the dog, etc. At the same time its important to make a habit of checking the GTD system regularly so that I don't overlook something I wanted it to remind me to do!