The question of getting it right

I'm aware that many people, especially beginning students, are very concerned with whether or not they are doing what they're "supposed" to be doing when they meditate. Jon Kabat-Zinn speaks to this in his marvelous book, Wherever You Go There You Are:

Try being aware of all the times in meditation when the thought comes up: "Am I doing this right?" "Is this what I should be feeling?" "Is this what is 'supposed' to happen?" Instead of trying to answer these questions, just look more deeply into the present moment. Expand your awareness in this very moment. Hold the question in awareness along with your breathing and with the full range of this particular moment's context. Trust that in this moment, "This is it," whatever and wherever "this" is. Looking deeply into whatever the "this" of the present moment is, keep up a continuity of mindfulness, allowing one moment to unfold into the next without analyzing, discoursing, judging, condemning, or doubting; simply observing, embracing, opening, letting be, accepting. Right now. Only this step. Only this
moment.

It strikes me that the words, "only this moment" would be a good mantra for maintaining mindfulness throughout the day. We could simply go about our daily routine and regularly say to ourselves, "only this moment," and let those words bring us into the here and now.