That is why meditators should always note diligently. One should not relax one's effort, thinking, "this little lapse should not matter much."
The meditator who is really intent on attaining the path and its fruition should rest from meditation only when asleep. At other times, and in all waking moments, one should be noting continually and without let up.
From a Vipassana book. "Noting" here refers to noting each movement, intention etc. The context is Ananda's attainment after a night of walking meditation, he lies down and is noting each movement as he lies down. At that moment, he attains arahant-ship.
In our case, awareness of being/self at each moment from waking to sleep. No let up.
See also: clear knowing