Made me think why brushing my teeth is so "easy" for me. I don't like it, but I won't miss it. I suspect one reason could be the immediate feedback (bad breath) if I miss it one night.

So interpolating from that, presumably the delay of feedback might make a huge difference for successfully or unsuccessfully taking on a new habit?

I guess pretty much the only other habit I have is drinking a cup of coffee in the morning. So being addictive helps, too.