at your elbow

at (one's) elbow

Close by; readily available. Please stay at your mother's elbow, in case she needs your help. I'm not very creative in the kitchen, so I always have a cookbook at my elbow when I prepare a new dish.
See also: elbow

at your ˈelbow

very near; within arm’s reach: I always like to have a dictionary at my elbow to check spellings.
See also: elbow